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Finding the Fourth Proportional to 87,796.98, 131,699.70 and 28,632.54

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Solution

The fourth proportional to 87,796.98, 131,699.70 and 28,632.54 is: 42,950.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,796.98 : 131,699.70 = 28,632.54 : x
  2. Step 2: Convert to fraction form
    87,796.98/131,699.70 = 28,632.54/x
  3. Step 3: Cross multiply
    87,796.98x = 131,699.70 × 28,632.54
  4. Step 4: Simplify right side
    87,796.98x = 3,770,896,928.24
  5. Step 5: Solve for x
    x = 3,770,896,928.24/87,796.98
  6. Step 6: Final answer
    x = 42,950.19

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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.