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Finding the Fourth Proportional to 63,951,121.20, 89,733,123.60 and 63,951,121.20

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Solution

The fourth proportional to 63,951,121.20, 89,733,123.60 and 63,951,121.20 is: 89,733,123.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,951,121.20 : 89,733,123.60 = 63,951,121.20 : x
  2. Step 2: Convert to fraction form
    63,951,121.20/89,733,123.60 = 63,951,121.20/x
  3. Step 3: Cross multiply
    63,951,121.20x = 89,733,123.60 × 63,951,121.20
  4. Step 4: Simplify right side
    63,951,121.20x = 5,738,533,862,998,180
  5. Step 5: Solve for x
    x = 5,738,533,862,998,180/63,951,121.20
  6. Step 6: Final answer
    x = 89,733,123.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.