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Finding the Fourth Proportional to 221,696.26, 332,593.60 and 63,912.40

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Solution

The fourth proportional to 221,696.26, 332,593.60 and 63,912.40 is: 95,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,696.26 : 332,593.60 = 63,912.40 : x
  2. Step 2: Convert to fraction form
    221,696.26/332,593.60 = 63,912.40/x
  3. Step 3: Cross multiply
    221,696.26x = 332,593.60 × 63,912.40
  4. Step 4: Simplify right side
    221,696.26x = 21,256,855,200.64
  5. Step 5: Solve for x
    x = 21,256,855,200.64/221,696.26
  6. Step 6: Final answer
    x = 95,882.79

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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.