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Finding the Fourth Proportional to 87,797.98, 131,701.20 and 28,633.54

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Solution

The fourth proportional to 87,797.98, 131,701.20 and 28,633.54 is: 42,951.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,797.98 : 131,701.20 = 28,633.54 : x
  2. Step 2: Convert to fraction form
    87,797.98/131,701.20 = 28,633.54/x
  3. Step 3: Cross multiply
    87,797.98x = 131,701.20 × 28,633.54
  4. Step 4: Simplify right side
    87,797.98x = 3,771,071,578.25
  5. Step 5: Solve for x
    x = 3,771,071,578.25/87,797.98
  6. Step 6: Final answer
    x = 42,951.69

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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.