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Finding the Fourth Proportional to 173,691.91, 239,649.28 and 100,086.24

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Solution

The fourth proportional to 173,691.91, 239,649.28 and 100,086.24 is: 138,092.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,691.91 : 239,649.28 = 100,086.24 : x
  2. Step 2: Convert to fraction form
    173,691.91/239,649.28 = 100,086.24/x
  3. Step 3: Cross multiply
    173,691.91x = 239,649.28 × 100,086.24
  4. Step 4: Simplify right side
    173,691.91x = 23,985,595,353.91
  5. Step 5: Solve for x
    x = 23,985,595,353.91/173,691.91
  6. Step 6: Final answer
    x = 138,092.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.