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Finding the Fourth Proportional to 167,126.64, 250,766.50 and 72,385.80

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Solution

The fourth proportional to 167,126.64, 250,766.50 and 72,385.80 is: 108,611.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,126.64 : 250,766.50 = 72,385.80 : x
  2. Step 2: Convert to fraction form
    167,126.64/250,766.50 = 72,385.80/x
  3. Step 3: Cross multiply
    167,126.64x = 250,766.50 × 72,385.80
  4. Step 4: Simplify right side
    167,126.64x = 18,151,933,715.70
  5. Step 5: Solve for x
    x = 18,151,933,715.70/167,126.64
  6. Step 6: Final answer
    x = 108,611.85

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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.