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Finding the Fourth Proportional to 132,606.70, 198,922.20 and 53,704.60

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Solution

The fourth proportional to 132,606.70, 198,922.20 and 53,704.60 is: 80,561.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,606.70 : 198,922.20 = 53,704.60 : x
  2. Step 2: Convert to fraction form
    132,606.70/198,922.20 = 53,704.60/x
  3. Step 3: Cross multiply
    132,606.70x = 198,922.20 × 53,704.60
  4. Step 4: Simplify right side
    132,606.70x = 10,683,037,182.12
  5. Step 5: Solve for x
    x = 10,683,037,182.12/132,606.70
  6. Step 6: Final answer
    x = 80,561.82

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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.