Xiao Ming was very excited after taking the light rail. It only takes 1.5 hours from Haikou to Sanya. He especially wanted to know the speed of the light rail, so he measured the distance from Haikou to Sanya on a map with a scale of 14.5 million. Please help him calculate What is the speed of light rail?
小明乘坐轻轨后非常兴奋，从海口到三亚只需要1.5小时，他特别想知道轻轨的速度，于是在一幅比例尺为14500000的地图上量得海口到三亚的距离为6厘米，请你帮他算一算轻轨的速度是多少？
<gadget id="calculator">1 / 4_500_000</gadget>
<output>1/4_500_000 = around 0</output>

<gadget id="calculator">6 / (1/4_500_000) / 1.5 / 100_000</gadget>
<output>180</output>

<result>180</result>