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Finding the Fourth Proportional to 120,490.92, 180,757.08 and 41,586.48

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Solution

The fourth proportional to 120,490.92, 180,757.08 and 41,586.48 is: 62,386.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,490.92 : 180,757.08 = 41,586.48 : x
  2. Step 2: Convert to fraction form
    120,490.92/180,757.08 = 41,586.48/x
  3. Step 3: Cross multiply
    120,490.92x = 180,757.08 × 41,586.48
  4. Step 4: Simplify right side
    120,490.92x = 7,517,050,692.28
  5. Step 5: Solve for x
    x = 7,517,050,692.28/120,490.92
  6. Step 6: Final answer
    x = 62,386.86

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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.