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Finding the Fourth Proportional to 137,791.86, 206,515.26 and 58,813.62

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Solution

The fourth proportional to 137,791.86, 206,515.26 and 58,813.62 is: 88,146.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,791.86 : 206,515.26 = 58,813.62 : x
  2. Step 2: Convert to fraction form
    137,791.86/206,515.26 = 58,813.62/x
  3. Step 3: Cross multiply
    137,791.86x = 206,515.26 × 58,813.62
  4. Step 4: Simplify right side
    137,791.86x = 12,145,910,025.84
  5. Step 5: Solve for x
    x = 12,145,910,025.84/137,791.86
  6. Step 6: Final answer
    x = 88,146.79

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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.