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Finding the Fourth Proportional to 132,546.55, 198,830.42 and 79,599.28

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Solution

The fourth proportional to 132,546.55, 198,830.42 and 79,599.28 is: 119,405.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,546.55 : 198,830.42 = 79,599.28 : x
  2. Step 2: Convert to fraction form
    132,546.55/198,830.42 = 79,599.28/x
  3. Step 3: Cross multiply
    132,546.55x = 198,830.42 × 79,599.28
  4. Step 4: Simplify right side
    132,546.55x = 15,826,758,833.41
  5. Step 5: Solve for x
    x = 15,826,758,833.41/132,546.55
  6. Step 6: Final answer
    x = 119,405.28

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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.