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Finding the Fourth Proportional to 66,936,663.80, 100,471,350.90 and 32,896,446.20

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Solution

The fourth proportional to 66,936,663.80, 100,471,350.90 and 32,896,446.20 is: 49,377,279.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,936,663.80 : 100,471,350.90 = 32,896,446.20 : x
  2. Step 2: Convert to fraction form
    66,936,663.80/100,471,350.90 = 32,896,446.20/x
  3. Step 3: Cross multiply
    66,936,663.80x = 100,471,350.90 × 32,896,446.20
  4. Step 4: Simplify right side
    66,936,663.80x = 3,305,150,389,523,171.50
  5. Step 5: Solve for x
    x = 3,305,150,389,523,171.50/66,936,663.80
  6. Step 6: Final answer
    x = 49,377,279.98

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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.