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Finding the Fourth Proportional to 123,167.40, 184,532.40 and 115,294.20

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Solution

The fourth proportional to 123,167.40, 184,532.40 and 115,294.20 is: 172,736.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,167.40 : 184,532.40 = 115,294.20 : x
  2. Step 2: Convert to fraction form
    123,167.40/184,532.40 = 115,294.20/x
  3. Step 3: Cross multiply
    123,167.40x = 184,532.40 × 115,294.20
  4. Step 4: Simplify right side
    123,167.40x = 21,275,515,432.08
  5. Step 5: Solve for x
    x = 21,275,515,432.08/123,167.40
  6. Step 6: Final answer
    x = 172,736.58

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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.