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Finding the Fourth Proportional to 272,456.55, 408,687.17 and 94,963.28

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Solution

The fourth proportional to 272,456.55, 408,687.17 and 94,963.28 is: 142,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,456.55 : 408,687.17 = 94,963.28 : x
  2. Step 2: Convert to fraction form
    272,456.55/408,687.17 = 94,963.28/x
  3. Step 3: Cross multiply
    272,456.55x = 408,687.17 × 94,963.28
  4. Step 4: Simplify right side
    272,456.55x = 38,810,271,638.87
  5. Step 5: Solve for x
    x = 38,810,271,638.87/272,456.55
  6. Step 6: Final answer
    x = 142,445.73

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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.