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Finding the Fourth Proportional to 125,459.72, 188,046.41 and 50,531.88

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Solution

The fourth proportional to 125,459.72, 188,046.41 and 50,531.88 is: 75,740.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,459.72 : 188,046.41 = 50,531.88 : x
  2. Step 2: Convert to fraction form
    125,459.72/188,046.41 = 50,531.88/x
  3. Step 3: Cross multiply
    125,459.72x = 188,046.41 × 50,531.88
  4. Step 4: Simplify right side
    125,459.72x = 9,502,338,371.89
  5. Step 5: Solve for x
    x = 9,502,338,371.89/125,459.72
  6. Step 6: Final answer
    x = 75,740.16

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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.