EXHIBIT 99.3 DAMES & MOORE GROUP Computation of Ratio of Earnings to Fixed Charges (in thousands) Year ended ------------------------------------------------------------------ March 26, March 27, March 28, March 29, March 31, 1999 1998 1997 1996 1995 Earnings before income taxes $ 6,676 $ 33,518 $ 31,489 $ 37,331 $ 31,772 ================================================================== Fixed charges: Interest expense $ 18,481 $ 10,292 $ 7,386 $ 2,844 $ 149 Appropriate protion (1/3) of rentals 10,995 8,122 7,872 6,730 5,269 ------------------------------------------------------------------ Total fixed charges $ 29,476 $ 18,414 $ 15,258 $ 9,574 $ 5,418 ================================================================== Earnings before income taxes plus fixed charges $ 36,152 $ 51,932 $ 46,747 $ 46,905 $ 37,190 ================================================================== Ratio of earnings to fixed charges 1.2 2.8 3.1 4.9 6.9 ==================================================================