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Finding the Fourth Proportional to 63,951,025.20, 89,732,989.20 and 63,951,025.20

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Solution

The fourth proportional to 63,951,025.20, 89,732,989.20 and 63,951,025.20 is: 89,732,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,951,025.20 : 89,732,989.20 = 63,951,025.20 : x
  2. Step 2: Convert to fraction form
    63,951,025.20/89,732,989.20 = 63,951,025.20/x
  3. Step 3: Cross multiply
    63,951,025.20x = 89,732,989.20 × 63,951,025.20
  4. Step 4: Simplify right side
    63,951,025.20x = 5,738,516,653,600,528
  5. Step 5: Solve for x
    x = 5,738,516,653,600,528/63,951,025.20
  6. Step 6: Final answer
    x = 89,732,989.20

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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.