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Finding the Fourth Proportional to 86,793.75, 119,769.71 and 48,546.65

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Solution

The fourth proportional to 86,793.75, 119,769.71 and 48,546.65 is: 66,991.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,793.75 : 119,769.71 = 48,546.65 : x
  2. Step 2: Convert to fraction form
    86,793.75/119,769.71 = 48,546.65/x
  3. Step 3: Cross multiply
    86,793.75x = 119,769.71 × 48,546.65
  4. Step 4: Simplify right side
    86,793.75x = 5,814,418,248.66
  5. Step 5: Solve for x
    x = 5,814,418,248.66/86,793.75
  6. Step 6: Final answer
    x = 66,991.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.