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Finding the Fourth Proportional to 67,736.60, 101,432.10 and 53,912.60

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Solution

The fourth proportional to 67,736.60, 101,432.10 and 53,912.60 is: 80,731.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,736.60 : 101,432.10 = 53,912.60 : x
  2. Step 2: Convert to fraction form
    67,736.60/101,432.10 = 53,912.60/x
  3. Step 3: Cross multiply
    67,736.60x = 101,432.10 × 53,912.60
  4. Step 4: Simplify right side
    67,736.60x = 5,468,468,234.46
  5. Step 5: Solve for x
    x = 5,468,468,234.46/67,736.60
  6. Step 6: Final answer
    x = 80,731.37

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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.