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Finding the Fourth Proportional to 343,944.56, 515,609.04 and 133,532.48

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Solution

The fourth proportional to 343,944.56, 515,609.04 and 133,532.48 is: 200,179.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,944.56 : 515,609.04 = 133,532.48 : x
  2. Step 2: Convert to fraction form
    343,944.56/515,609.04 = 133,532.48/x
  3. Step 3: Cross multiply
    343,944.56x = 515,609.04 × 133,532.48
  4. Step 4: Simplify right side
    343,944.56x = 68,850,553,821.62
  5. Step 5: Solve for x
    x = 68,850,553,821.62/343,944.56
  6. Step 6: Final answer
    x = 200,179.22

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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.