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Finding the Fourth Proportional to 208,879.86, 313,331.97 and 59,107.62

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Solution

The fourth proportional to 208,879.86, 313,331.97 and 59,107.62 is: 88,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,879.86 : 313,331.97 = 59,107.62 : x
  2. Step 2: Convert to fraction form
    208,879.86/313,331.97 = 59,107.62/x
  3. Step 3: Cross multiply
    208,879.86x = 313,331.97 × 59,107.62
  4. Step 4: Simplify right side
    208,879.86x = 18,520,307,016.61
  5. Step 5: Solve for x
    x = 18,520,307,016.61/208,879.86
  6. Step 6: Final answer
    x = 88,664.88

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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.