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Finding the Fourth Proportional to 125,622.60, 188,433.90 and 124,747.80

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Solution

The fourth proportional to 125,622.60, 188,433.90 and 124,747.80 is: 187,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,622.60 : 188,433.90 = 124,747.80 : x
  2. Step 2: Convert to fraction form
    125,622.60/188,433.90 = 124,747.80/x
  3. Step 3: Cross multiply
    125,622.60x = 188,433.90 × 124,747.80
  4. Step 4: Simplify right side
    125,622.60x = 23,506,714,470.42
  5. Step 5: Solve for x
    x = 23,506,714,470.42/125,622.60
  6. Step 6: Final answer
    x = 187,121.70

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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.