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Finding the Fourth Proportional to 137,859.92, 206,676.87 and 49,062.86

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Solution

The fourth proportional to 137,859.92, 206,676.87 and 49,062.86 is: 73,554.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,859.92 : 206,676.87 = 49,062.86 : x
  2. Step 2: Convert to fraction form
    137,859.92/206,676.87 = 49,062.86/x
  3. Step 3: Cross multiply
    137,859.92x = 206,676.87 × 49,062.86
  4. Step 4: Simplify right side
    137,859.92x = 10,140,158,092.73
  5. Step 5: Solve for x
    x = 10,140,158,092.73/137,859.92
  6. Step 6: Final answer
    x = 73,554.07

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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.