Finding the Fourth Proportional to 76,661,626.56, 114,809,119.68 and 44,215,160.40
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Solution
The fourth proportional to 76,661,626.56, 114,809,119.68 and 44,215,160.40 is: 66,217,009.34
Step by Step Solution
- Step 1: Write the proportion equation
76,661,626.56 : 114,809,119.68 = 44,215,160.40 : x - Step 2: Convert to fraction form
76,661,626.56/114,809,119.68 = 44,215,160.40/x - Step 3: Cross multiply
76,661,626.56x = 114,809,119.68 × 44,215,160.40 - Step 4: Simplify right side
76,661,626.56x = 5,076,303,642,033,997 - Step 5: Solve for x
x = 5,076,303,642,033,997/76,661,626.56 - Step 6: Final answer
x = 66,217,009.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.