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Finding the Fourth Proportional to 224,481.62, 309,786.44 and 122,507.88

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Solution

The fourth proportional to 224,481.62, 309,786.44 and 122,507.88 is: 169,061.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,481.62 : 309,786.44 = 122,507.88 : x
  2. Step 2: Convert to fraction form
    224,481.62/309,786.44 = 122,507.88/x
  3. Step 3: Cross multiply
    224,481.62x = 309,786.44 × 122,507.88
  4. Step 4: Simplify right side
    224,481.62x = 37,951,280,017.15
  5. Step 5: Solve for x
    x = 37,951,280,017.15/224,481.62
  6. Step 6: Final answer
    x = 169,061.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.