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Finding the Fourth Proportional to 67,855.87, 101,680.01 and 36,270.43

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Solution

The fourth proportional to 67,855.87, 101,680.01 and 36,270.43 is: 54,350.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,855.87 : 101,680.01 = 36,270.43 : x
  2. Step 2: Convert to fraction form
    67,855.87/101,680.01 = 36,270.43/x
  3. Step 3: Cross multiply
    67,855.87x = 101,680.01 × 36,270.43
  4. Step 4: Simplify right side
    67,855.87x = 3,687,977,685.10
  5. Step 5: Solve for x
    x = 3,687,977,685.10/67,855.87
  6. Step 6: Final answer
    x = 54,350.16

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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.