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Finding the Fourth Proportional to 125,285.31, 187,909.71 and 36,514.98

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Solution

The fourth proportional to 125,285.31, 187,909.71 and 36,514.98 is: 54,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,285.31 : 187,909.71 = 36,514.98 : x
  2. Step 2: Convert to fraction form
    125,285.31/187,909.71 = 36,514.98/x
  3. Step 3: Cross multiply
    125,285.31x = 187,909.71 × 36,514.98
  4. Step 4: Simplify right side
    125,285.31x = 6,861,519,302.46
  5. Step 5: Solve for x
    x = 6,861,519,302.46/125,285.31
  6. Step 6: Final answer
    x = 54,767.15

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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.