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Finding the Fourth Proportional to 87,794.80, 131,467.80 and 48,308.56

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Solution

The fourth proportional to 87,794.80, 131,467.80 and 48,308.56 is: 72,339.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,794.80 : 131,467.80 = 48,308.56 : x
  2. Step 2: Convert to fraction form
    87,794.80/131,467.80 = 48,308.56/x
  3. Step 3: Cross multiply
    87,794.80x = 131,467.80 × 48,308.56
  4. Step 4: Simplify right side
    87,794.80x = 6,351,020,104.37
  5. Step 5: Solve for x
    x = 6,351,020,104.37/87,794.80
  6. Step 6: Final answer
    x = 72,339.37

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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.