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Finding the Fourth Proportional to 125,274.92, 187,892.38 and 36,507.66

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Solution

The fourth proportional to 125,274.92, 187,892.38 and 36,507.66 is: 54,755.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,274.92 : 187,892.38 = 36,507.66 : x
  2. Step 2: Convert to fraction form
    125,274.92/187,892.38 = 36,507.66/x
  3. Step 3: Cross multiply
    125,274.92x = 187,892.38 × 36,507.66
  4. Step 4: Simplify right side
    125,274.92x = 6,859,510,943.09
  5. Step 5: Solve for x
    x = 6,859,510,943.09/125,274.92
  6. Step 6: Final answer
    x = 54,755.66

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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.