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Finding the Fourth Proportional to 132,548.55, 198,833.42 and 79,601.28

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Solution

The fourth proportional to 132,548.55, 198,833.42 and 79,601.28 is: 119,408.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,548.55 : 198,833.42 = 79,601.28 : x
  2. Step 2: Convert to fraction form
    132,548.55/198,833.42 = 79,601.28/x
  3. Step 3: Cross multiply
    132,548.55x = 198,833.42 × 79,601.28
  4. Step 4: Simplify right side
    132,548.55x = 15,827,394,738.78
  5. Step 5: Solve for x
    x = 15,827,394,738.78/132,548.55
  6. Step 6: Final answer
    x = 119,408.28

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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.