'PHP bug in exact calc

See the calc:

var_dump((75.2 >= ((94 * 1.8) - 94))); // return false;
var_dump((75.200000000000001 >= ((94 * 1.8) - 94))); // return false;
var_dump((75.20000000000000995 >= ((94 * 1.8) - 94))); // return true;
var_dump((75.20000000000001 >= ((94 * 1.8) - 94))); // return true;

The calculation is exact and this should not happen. What reason happens?

All php version.

php


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