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Finding the Fourth Proportional to 167,600.40, 251,279.10 and 67,711.20

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Solution

The fourth proportional to 167,600.40, 251,279.10 and 67,711.20 is: 101,517.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,600.40 : 251,279.10 = 67,711.20 : x
  2. Step 2: Convert to fraction form
    167,600.40/251,279.10 = 67,711.20/x
  3. Step 3: Cross multiply
    167,600.40x = 251,279.10 × 67,711.20
  4. Step 4: Simplify right side
    167,600.40x = 17,014,409,395.92
  5. Step 5: Solve for x
    x = 17,014,409,395.92/167,600.40
  6. Step 6: Final answer
    x = 101,517.71

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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.