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Finding the Fourth Proportional to 86,793.38, 119,773.28 and 49,067.64

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Solution

The fourth proportional to 86,793.38, 119,773.28 and 49,067.64 is: 67,712.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,793.38 : 119,773.28 = 49,067.64 : x
  2. Step 2: Convert to fraction form
    86,793.38/119,773.28 = 49,067.64/x
  3. Step 3: Cross multiply
    86,793.38x = 119,773.28 × 49,067.64
  4. Step 4: Simplify right side
    86,793.38x = 5,876,992,184.66
  5. Step 5: Solve for x
    x = 5,876,992,184.66/86,793.38
  6. Step 6: Final answer
    x = 67,712.45

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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.