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Finding the Fourth Proportional to 240,617.20, 360,974.40 and 82,861.60

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Solution

The fourth proportional to 240,617.20, 360,974.40 and 82,861.60 is: 124,309.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,617.20 : 360,974.40 = 82,861.60 : x
  2. Step 2: Convert to fraction form
    240,617.20/360,974.40 = 82,861.60/x
  3. Step 3: Cross multiply
    240,617.20x = 360,974.40 × 82,861.60
  4. Step 4: Simplify right side
    240,617.20x = 29,910,916,343.04
  5. Step 5: Solve for x
    x = 29,910,916,343.04/240,617.20
  6. Step 6: Final answer
    x = 124,309.14

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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.