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Finding the Fourth Proportional to 125,287.83, 187,592.76 and 91,753.83

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Solution

The fourth proportional to 125,287.83, 187,592.76 and 91,753.83 is: 137,382.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,287.83 : 187,592.76 = 91,753.83 : x
  2. Step 2: Convert to fraction form
    125,287.83/187,592.76 = 91,753.83/x
  3. Step 3: Cross multiply
    125,287.83x = 187,592.76 × 91,753.83
  4. Step 4: Simplify right side
    125,287.83x = 17,212,354,210.27
  5. Step 5: Solve for x
    x = 17,212,354,210.27/125,287.83
  6. Step 6: Final answer
    x = 137,382.49

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1.5x scale

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.