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Finding the Fourth Proportional to 67,286.92, 101,019.66 and 57,489.16

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Solution

The fourth proportional to 67,286.92, 101,019.66 and 57,489.16 is: 86,310.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,286.92 : 101,019.66 = 57,489.16 : x
  2. Step 2: Convert to fraction form
    67,286.92/101,019.66 = 57,489.16/x
  3. Step 3: Cross multiply
    67,286.92x = 101,019.66 × 57,489.16
  4. Step 4: Simplify right side
    67,286.92x = 5,807,535,396.89
  5. Step 5: Solve for x
    x = 5,807,535,396.89/67,286.92
  6. Step 6: Final answer
    x = 86,310.02

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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.