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Finding the Fourth Proportional to 261,517.52, 392,334.60 and 95,305.52

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Solution

The fourth proportional to 261,517.52, 392,334.60 and 95,305.52 is: 142,979.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,517.52 : 392,334.60 = 95,305.52 : x
  2. Step 2: Convert to fraction form
    261,517.52/392,334.60 = 95,305.52/x
  3. Step 3: Cross multiply
    261,517.52x = 392,334.60 × 95,305.52
  4. Step 4: Simplify right side
    261,517.52x = 37,391,653,066.99
  5. Step 5: Solve for x
    x = 37,391,653,066.99/261,517.52
  6. Step 6: Final answer
    x = 142,979.53

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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.