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Finding the Fourth Proportional to 137,892.62, 206,647.56 and 62,829.32

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Solution

The fourth proportional to 137,892.62, 206,647.56 and 62,829.32 is: 94,156.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,892.62 : 206,647.56 = 62,829.32 : x
  2. Step 2: Convert to fraction form
    137,892.62/206,647.56 = 62,829.32/x
  3. Step 3: Cross multiply
    137,892.62x = 206,647.56 × 62,829.32
  4. Step 4: Simplify right side
    137,892.62x = 12,983,524,641.22
  5. Step 5: Solve for x
    x = 12,983,524,641.22/137,892.62
  6. Step 6: Final answer
    x = 94,156.78

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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.