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Finding the Fourth Proportional to 200,481.33, 300,721.89 and 187,195.32

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Solution

The fourth proportional to 200,481.33, 300,721.89 and 187,195.32 is: 280,792.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,481.33 : 300,721.89 = 187,195.32 : x
  2. Step 2: Convert to fraction form
    200,481.33/300,721.89 = 187,195.32/x
  3. Step 3: Cross multiply
    200,481.33x = 300,721.89 × 187,195.32
  4. Step 4: Simplify right side
    200,481.33x = 56,293,730,429.55
  5. Step 5: Solve for x
    x = 56,293,730,429.55/200,481.33
  6. Step 6: Final answer
    x = 280,792.88

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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.