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Finding the Fourth Proportional to 132,709.55, 198,596.61 and 82,813.14

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Solution

The fourth proportional to 132,709.55, 198,596.61 and 82,813.14 is: 123,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,709.55 : 198,596.61 = 82,813.14 : x
  2. Step 2: Convert to fraction form
    132,709.55/198,596.61 = 82,813.14/x
  3. Step 3: Cross multiply
    132,709.55x = 198,596.61 × 82,813.14
  4. Step 4: Simplify right side
    132,709.55x = 16,446,408,867.46
  5. Step 5: Solve for x
    x = 16,446,408,867.46/132,709.55
  6. Step 6: Final answer
    x = 123,927.85

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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.