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Finding the Fourth Proportional to 466,134.21, 699,236.55 and 129,170.97

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Solution

The fourth proportional to 466,134.21, 699,236.55 and 129,170.97 is: 193,766.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,134.21 : 699,236.55 = 129,170.97 : x
  2. Step 2: Convert to fraction form
    466,134.21/699,236.55 = 129,170.97/x
  3. Step 3: Cross multiply
    466,134.21x = 699,236.55 × 129,170.97
  4. Step 4: Simplify right side
    466,134.21x = 90,321,063,422.95
  5. Step 5: Solve for x
    x = 90,321,063,422.95/466,134.21
  6. Step 6: Final answer
    x = 193,766.22

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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.