The area of a large circle is 144 times the area of a small circle. If the length of the radius of the small circle is 1 unit, what is the length of the radius of the large circle to the nearest tenth?

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1. The area of a large circle is 144 times the area of a small circle. If the length of the radius of the small circle is 1 unit, what is the length of the radius of the large circle to the nearest tenth?