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Finding the Fourth Proportional to 229,711.20, 343,789.20 and 201,717.60

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Solution

The fourth proportional to 229,711.20, 343,789.20 and 201,717.60 is: 301,893.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,711.20 : 343,789.20 = 201,717.60 : x
  2. Step 2: Convert to fraction form
    229,711.20/343,789.20 = 201,717.60/x
  3. Step 3: Cross multiply
    229,711.20x = 343,789.20 × 201,717.60
  4. Step 4: Simplify right side
    229,711.20x = 69,348,332,329.92
  5. Step 5: Solve for x
    x = 69,348,332,329.92/229,711.20
  6. Step 6: Final answer
    x = 301,893.56

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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.