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Finding the Fourth Proportional to 132,380.70, 198,669.49 and 53,495.61

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Solution

The fourth proportional to 132,380.70, 198,669.49 and 53,495.61 is: 80,283.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,380.70 : 198,669.49 = 53,495.61 : x
  2. Step 2: Convert to fraction form
    132,380.70/198,669.49 = 53,495.61/x
  3. Step 3: Cross multiply
    132,380.70x = 198,669.49 × 53,495.61
  4. Step 4: Simplify right side
    132,380.70x = 10,627,945,422.20
  5. Step 5: Solve for x
    x = 10,627,945,422.20/132,380.70
  6. Step 6: Final answer
    x = 80,283.19

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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.