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Finding the Fourth Proportional to 124,934.38, 187,401.57 and 36,187.91

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Solution

The fourth proportional to 124,934.38, 187,401.57 and 36,187.91 is: 54,281.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,934.38 : 187,401.57 = 36,187.91 : x
  2. Step 2: Convert to fraction form
    124,934.38/187,401.57 = 36,187.91/x
  3. Step 3: Cross multiply
    124,934.38x = 187,401.57 × 36,187.91
  4. Step 4: Simplify right side
    124,934.38x = 6,781,671,617.52
  5. Step 5: Solve for x
    x = 6,781,671,617.52/124,934.38
  6. Step 6: Final answer
    x = 54,281.87

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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.