Answer
$350\ m$
Work Step by Step
We multiply and divide as follows:
$$
\frac{(56.3 \ m)(25\ m)(112.5\ m) }{(21.275 m)^2}= \frac{158343.75 \ m^3 }{452.63 m^2}=349.83\ m \approx 350~m
.$$
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