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Finding the Fourth Proportional to 87,676.77, 131,482.85 and 31,501.85

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Solution

The fourth proportional to 87,676.77, 131,482.85 and 31,501.85 is: 47,241.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,676.77 : 131,482.85 = 31,501.85 : x
  2. Step 2: Convert to fraction form
    87,676.77/131,482.85 = 31,501.85/x
  3. Step 3: Cross multiply
    87,676.77x = 131,482.85 × 31,501.85
  4. Step 4: Simplify right side
    87,676.77x = 4,141,953,425.73
  5. Step 5: Solve for x
    x = 4,141,953,425.73/87,676.77
  6. Step 6: Final answer
    x = 47,241.17

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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.