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Finding the Fourth Proportional to 86,793.87, 119,770.72 and 48,546.03

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Solution

The fourth proportional to 86,793.87, 119,770.72 and 48,546.03 is: 66,990.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,793.87 : 119,770.72 = 48,546.03 : x
  2. Step 2: Convert to fraction form
    86,793.87/119,770.72 = 48,546.03/x
  3. Step 3: Cross multiply
    86,793.87x = 119,770.72 × 48,546.03
  4. Step 4: Simplify right side
    86,793.87x = 5,814,392,966.24
  5. Step 5: Solve for x
    x = 5,814,392,966.24/86,793.87
  6. Step 6: Final answer
    x = 66,990.83

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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.