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Finding the Fourth Proportional to 87,062.88, 120,174.12 and 49,362.24

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Solution

The fourth proportional to 87,062.88, 120,174.12 and 49,362.24 is: 68,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,062.88 : 120,174.12 = 49,362.24 : x
  2. Step 2: Convert to fraction form
    87,062.88/120,174.12 = 49,362.24/x
  3. Step 3: Cross multiply
    87,062.88x = 120,174.12 × 49,362.24
  4. Step 4: Simplify right side
    87,062.88x = 5,932,063,753.23
  5. Step 5: Solve for x
    x = 5,932,063,753.23/87,062.88
  6. Step 6: Final answer
    x = 68,135.40

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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.