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Finding the Fourth Proportional to 132,679.60, 182,904.42 and 100,793.14

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Solution

The fourth proportional to 132,679.60, 182,904.42 and 100,793.14 is: 138,947.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,679.60 : 182,904.42 = 100,793.14 : x
  2. Step 2: Convert to fraction form
    132,679.60/182,904.42 = 100,793.14/x
  3. Step 3: Cross multiply
    132,679.60x = 182,904.42 × 100,793.14
  4. Step 4: Simplify right side
    132,679.60x = 18,435,510,811.68
  5. Step 5: Solve for x
    x = 18,435,510,811.68/132,679.60
  6. Step 6: Final answer
    x = 138,947.59

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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.