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Finding the Fourth Proportional to 125,874.40, 188,839.38 and 41,660.80

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Solution

The fourth proportional to 125,874.40, 188,839.38 and 41,660.80 is: 62,500.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,874.40 : 188,839.38 = 41,660.80 : x
  2. Step 2: Convert to fraction form
    125,874.40/188,839.38 = 41,660.80/x
  3. Step 3: Cross multiply
    125,874.40x = 188,839.38 × 41,660.80
  4. Step 4: Simplify right side
    125,874.40x = 7,867,199,642.30
  5. Step 5: Solve for x
    x = 7,867,199,642.30/125,874.40
  6. Step 6: Final answer
    x = 62,500.39

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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.