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Finding the Fourth Proportional to 87,794.92, 131,713.32 and 28,630.66

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Solution

The fourth proportional to 87,794.92, 131,713.32 and 28,630.66 is: 42,952.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,794.92 : 131,713.32 = 28,630.66 : x
  2. Step 2: Convert to fraction form
    87,794.92/131,713.32 = 28,630.66/x
  3. Step 3: Cross multiply
    87,794.92x = 131,713.32 × 28,630.66
  4. Step 4: Simplify right side
    87,794.92x = 3,771,039,282.39
  5. Step 5: Solve for x
    x = 3,771,039,282.39/87,794.92
  6. Step 6: Final answer
    x = 42,952.82

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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.