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Finding the Fourth Proportional to 125,253.96, 172,846.89 and 71,537.87

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Solution

The fourth proportional to 125,253.96, 172,846.89 and 71,537.87 is: 98,720.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,253.96 : 172,846.89 = 71,537.87 : x
  2. Step 2: Convert to fraction form
    125,253.96/172,846.89 = 71,537.87/x
  3. Step 3: Cross multiply
    125,253.96x = 172,846.89 × 71,537.87
  4. Step 4: Simplify right side
    125,253.96x = 12,365,098,346.72
  5. Step 5: Solve for x
    x = 12,365,098,346.72/125,253.96
  6. Step 6: Final answer
    x = 98,720.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.