For a room, if the floor is paved with square bricks with a side length of 3dm, 128 pieces are needed. If the floor is paved with square bricks with a side length of 4dm, how many pieces are needed? (Solve with ratio)
一间房间，如果边长是3dm的方砖铺地，需要128块，如果改用边长是4dm的方砖铺地，需要多少块？(用比例解)
<gadget id="calculator">3 * 3 * 128</gadget>
<output>1_152</output>

<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">1_152 / 16</gadget>
<output>72</output>

<result>72</result>