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Finding the Fourth Proportional to 67,680.52, 101,704.62 and 36,112.54

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Solution

The fourth proportional to 67,680.52, 101,704.62 and 36,112.54 is: 54,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,680.52 : 101,704.62 = 36,112.54 : x
  2. Step 2: Convert to fraction form
    67,680.52/101,704.62 = 36,112.54/x
  3. Step 3: Cross multiply
    67,680.52x = 101,704.62 × 36,112.54
  4. Step 4: Simplify right side
    67,680.52x = 3,672,812,157.93
  5. Step 5: Solve for x
    x = 3,672,812,157.93/67,680.52
  6. Step 6: Final answer
    x = 54,266.90

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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.