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Finding the Fourth Proportional to 131,696.31, 197,372.23 and 52,865.90

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Solution

The fourth proportional to 131,696.31, 197,372.23 and 52,865.90 is: 79,229.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,696.31 : 197,372.23 = 52,865.90 : x
  2. Step 2: Convert to fraction form
    131,696.31/197,372.23 = 52,865.90/x
  3. Step 3: Cross multiply
    131,696.31x = 197,372.23 × 52,865.90
  4. Step 4: Simplify right side
    131,696.31x = 10,434,260,195.08
  5. Step 5: Solve for x
    x = 10,434,260,195.08/131,696.31
  6. Step 6: Final answer
    x = 79,229.71

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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.