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Finding the Fourth Proportional to 132,179.70, 198,269.91 and 92,912.46

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Solution

The fourth proportional to 132,179.70, 198,269.91 and 92,912.46 is: 139,368.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,179.70 : 198,269.91 = 92,912.46 : x
  2. Step 2: Convert to fraction form
    132,179.70/198,269.91 = 92,912.46/x
  3. Step 3: Cross multiply
    132,179.70x = 198,269.91 × 92,912.46
  4. Step 4: Simplify right side
    132,179.70x = 18,421,745,082.08
  5. Step 5: Solve for x
    x = 18,421,745,082.08/132,179.70
  6. Step 6: Final answer
    x = 139,368.94

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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.