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Finding the Fourth Proportional to 132,383.88, 198,597.60 and 43,642.68

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Solution

The fourth proportional to 132,383.88, 198,597.60 and 43,642.68 is: 65,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,383.88 : 198,597.60 = 43,642.68 : x
  2. Step 2: Convert to fraction form
    132,383.88/198,597.60 = 43,642.68/x
  3. Step 3: Cross multiply
    132,383.88x = 198,597.60 × 43,642.68
  4. Step 4: Simplify right side
    132,383.88x = 8,667,331,505.57
  5. Step 5: Solve for x
    x = 8,667,331,505.57/132,383.88
  6. Step 6: Final answer
    x = 65,471.20

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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.