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Finding the Fourth Proportional to 67,344.40, 100,951.80 and 52,343.20

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Solution

The fourth proportional to 67,344.40, 100,951.80 and 52,343.20 is: 78,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,344.40 : 100,951.80 = 52,343.20 : x
  2. Step 2: Convert to fraction form
    67,344.40/100,951.80 = 52,343.20/x
  3. Step 3: Cross multiply
    67,344.40x = 100,951.80 × 52,343.20
  4. Step 4: Simplify right side
    67,344.40x = 5,284,140,257.76
  5. Step 5: Solve for x
    x = 5,284,140,257.76/67,344.40
  6. Step 6: Final answer
    x = 78,464.43

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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.