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Finding the Fourth Proportional to 67,919.60, 101,956.20 and 40,233.20

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Solution

The fourth proportional to 67,919.60, 101,956.20 and 40,233.20 is: 60,395.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,919.60 : 101,956.20 = 40,233.20 : x
  2. Step 2: Convert to fraction form
    67,919.60/101,956.20 = 40,233.20/x
  3. Step 3: Cross multiply
    67,919.60x = 101,956.20 × 40,233.20
  4. Step 4: Simplify right side
    67,919.60x = 4,102,024,185.84
  5. Step 5: Solve for x
    x = 4,102,024,185.84/67,919.60
  6. Step 6: Final answer
    x = 60,395.29

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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.