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Finding the Fourth Proportional to 123,469.88, 185,077.68 and 48,559.65

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Solution

The fourth proportional to 123,469.88, 185,077.68 and 48,559.65 is: 72,789.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,469.88 : 185,077.68 = 48,559.65 : x
  2. Step 2: Convert to fraction form
    123,469.88/185,077.68 = 48,559.65/x
  3. Step 3: Cross multiply
    123,469.88x = 185,077.68 × 48,559.65
  4. Step 4: Simplify right side
    123,469.88x = 8,987,307,363.61
  5. Step 5: Solve for x
    x = 8,987,307,363.61/123,469.88
  6. Step 6: Final answer
    x = 72,789.47

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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.