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Finding the Fourth Proportional to 86,793.39, 119,769.22 and 48,546.31

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Solution

The fourth proportional to 86,793.39, 119,769.22 and 48,546.31 is: 66,990.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,793.39 : 119,769.22 = 48,546.31 : x
  2. Step 2: Convert to fraction form
    86,793.39/119,769.22 = 48,546.31/x
  3. Step 3: Cross multiply
    86,793.39x = 119,769.22 × 48,546.31
  4. Step 4: Simplify right side
    86,793.39x = 5,814,353,682.58
  5. Step 5: Solve for x
    x = 5,814,353,682.58/86,793.39
  6. Step 6: Final answer
    x = 66,990.74

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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.