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Finding the Fourth Proportional to 67,808.72, 101,680.28 and 23,419.92

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Solution

The fourth proportional to 67,808.72, 101,680.28 and 23,419.92 is: 35,118.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,808.72 : 101,680.28 = 23,419.92 : x
  2. Step 2: Convert to fraction form
    67,808.72/101,680.28 = 23,419.92/x
  3. Step 3: Cross multiply
    67,808.72x = 101,680.28 × 23,419.92
  4. Step 4: Simplify right side
    67,808.72x = 2,381,344,023.18
  5. Step 5: Solve for x
    x = 2,381,344,023.18/67,808.72
  6. Step 6: Final answer
    x = 35,118.55

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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.