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Finding the Fourth Proportional to 87,765.58, 131,662.14 and 37,859.86

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Solution

The fourth proportional to 87,765.58, 131,662.14 and 37,859.86 is: 56,795.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,765.58 : 131,662.14 = 37,859.86 : x
  2. Step 2: Convert to fraction form
    87,765.58/131,662.14 = 37,859.86/x
  3. Step 3: Cross multiply
    87,765.58x = 131,662.14 × 37,859.86
  4. Step 4: Simplify right side
    87,765.58x = 4,984,710,187.70
  5. Step 5: Solve for x
    x = 4,984,710,187.70/87,765.58
  6. Step 6: Final answer
    x = 56,795.73

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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.