Xiaohong's weight is 30.5 kilograms, and her father's weight is 2.4 times that of Xiaohong's. How much is her father's weight in kilograms?
小红的体重是30.5千克，爸爸的体重是小红的2.4倍，爸爸的体重是多少千克？
<gadget id="calculator">30.5 * 2.4</gadget>
<output>73.2</output>

<result>73.2</result>