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Finding the Fourth Proportional to 274,456.20, 411,600.26 and 96,921.61

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Solution

The fourth proportional to 274,456.20, 411,600.26 and 96,921.61 is: 145,352.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,456.20 : 411,600.26 = 96,921.61 : x
  2. Step 2: Convert to fraction form
    274,456.20/411,600.26 = 96,921.61/x
  3. Step 3: Cross multiply
    274,456.20x = 411,600.26 × 96,921.61
  4. Step 4: Simplify right side
    274,456.20x = 39,892,959,391.01
  5. Step 5: Solve for x
    x = 39,892,959,391.01/274,456.20
  6. Step 6: Final answer
    x = 145,352.74

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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.