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Finding the Fourth Proportional to 80,647.92, 120,996.48 and 41,232.71

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Solution

The fourth proportional to 80,647.92, 120,996.48 and 41,232.71 is: 61,861.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,647.92 : 120,996.48 = 41,232.71 : x
  2. Step 2: Convert to fraction form
    80,647.92/120,996.48 = 41,232.71/x
  3. Step 3: Cross multiply
    80,647.92x = 120,996.48 × 41,232.71
  4. Step 4: Simplify right side
    80,647.92x = 4,989,012,165.88
  5. Step 5: Solve for x
    x = 4,989,012,165.88/80,647.92
  6. Step 6: Final answer
    x = 61,861.63

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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.