The perimeter of a rectangle is 56 cm, and the ratio of length to width is 4:3. What is the area of the rectangle in square centimeters?
一个长方形的周长是56厘米，长与宽的比是4：3，这个长方形的面积是多少平方厘米？
<gadget id="calculator">4 + 3</gadget>
<output>7</output>

<gadget id="calculator">56 / 2 / 7</gadget>
<output>4</output>

<gadget id="calculator">4 * 4 * 3 * 4</gadget>
<output>192</output>

<result>192</result>