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Finding the Fourth Proportional to 132,672.70, 199,021.20 and 53,770.60

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Solution

The fourth proportional to 132,672.70, 199,021.20 and 53,770.60 is: 80,660.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,672.70 : 199,021.20 = 53,770.60 : x
  2. Step 2: Convert to fraction form
    132,672.70/199,021.20 = 53,770.60/x
  3. Step 3: Cross multiply
    132,672.70x = 199,021.20 × 53,770.60
  4. Step 4: Simplify right side
    132,672.70x = 10,701,489,336.72
  5. Step 5: Solve for x
    x = 10,701,489,336.72/132,672.70
  6. Step 6: Final answer
    x = 80,660.82

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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.