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Finding the Fourth Proportional to 201,747.20, 301,843.20 and 131,763.20

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Solution

The fourth proportional to 201,747.20, 301,843.20 and 131,763.20 is: 197,136.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,747.20 : 301,843.20 = 131,763.20 : x
  2. Step 2: Convert to fraction form
    201,747.20/301,843.20 = 131,763.20/x
  3. Step 3: Cross multiply
    201,747.20x = 301,843.20 × 131,763.20
  4. Step 4: Simplify right side
    201,747.20x = 39,771,825,930.24
  5. Step 5: Solve for x
    x = 39,771,825,930.24/201,747.20
  6. Step 6: Final answer
    x = 197,136.94

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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.