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Finding the Fourth Proportional to 123,379.48, 185,082.24 and 39,151.60

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Solution

The fourth proportional to 123,379.48, 185,082.24 and 39,151.60 is: 58,731.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,379.48 : 185,082.24 = 39,151.60 : x
  2. Step 2: Convert to fraction form
    123,379.48/185,082.24 = 39,151.60/x
  3. Step 3: Cross multiply
    123,379.48x = 185,082.24 × 39,151.60
  4. Step 4: Simplify right side
    123,379.48x = 7,246,265,827.58
  5. Step 5: Solve for x
    x = 7,246,265,827.58/123,379.48
  6. Step 6: Final answer
    x = 58,731.53

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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.