I'll give you a question, please answer with step-by-step reasoning process.
A car driving cross-country traveled 180 miles in 4 hours. At this rate of speed, how many miles further will the car travel in the next 3 hours?

135
The car drives 180 miles in 4 hours, so its average speed is 180 miles / 4 hours = 45 miles per hour.

In the next 3 hours, the car will drive 45 miles / hour * 3 hours = 135 miles.

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The answer is 135