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Finding the Fourth Proportional to 123,260.62, 184,891.48 and 39,021.20

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Solution

The fourth proportional to 123,260.62, 184,891.48 and 39,021.20 is: 58,531.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,260.62 : 184,891.48 = 39,021.20 : x
  2. Step 2: Convert to fraction form
    123,260.62/184,891.48 = 39,021.20/x
  3. Step 3: Cross multiply
    123,260.62x = 184,891.48 × 39,021.20
  4. Step 4: Simplify right side
    123,260.62x = 7,214,687,419.38
  5. Step 5: Solve for x
    x = 7,214,687,419.38/123,260.62
  6. Step 6: Final answer
    x = 58,531.97

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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.