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Finding the Fourth Proportional to 57,487,712.55, 86,231,568.83 and 57,487,712.55

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Solution

The fourth proportional to 57,487,712.55, 86,231,568.83 and 57,487,712.55 is: 86,231,568.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,487,712.55 : 86,231,568.83 = 57,487,712.55 : x
  2. Step 2: Convert to fraction form
    57,487,712.55/86,231,568.83 = 57,487,712.55/x
  3. Step 3: Cross multiply
    57,487,712.55x = 86,231,568.83 × 57,487,712.55
  4. Step 4: Simplify right side
    57,487,712.55x = 4,957,255,641,347,141
  5. Step 5: Solve for x
    x = 4,957,255,641,347,141/57,487,712.55
  6. Step 6: Final answer
    x = 86,231,568.83

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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.