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Finding the Fourth Proportional to 67,160.16, 100,742.88 and 17,241.92

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Solution

The fourth proportional to 67,160.16, 100,742.88 and 17,241.92 is: 25,863.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,160.16 : 100,742.88 = 17,241.92 : x
  2. Step 2: Convert to fraction form
    67,160.16/100,742.88 = 17,241.92/x
  3. Step 3: Cross multiply
    67,160.16x = 100,742.88 × 17,241.92
  4. Step 4: Simplify right side
    67,160.16x = 1,737,000,677.53
  5. Step 5: Solve for x
    x = 1,737,000,677.53/67,160.16
  6. Step 6: Final answer
    x = 25,863.56

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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.