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Finding the Fourth Proportional to 223,481.24, 335,432.54 and 81,463.79

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Solution

The fourth proportional to 223,481.24, 335,432.54 and 81,463.79 is: 122,272.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,481.24 : 335,432.54 = 81,463.79 : x
  2. Step 2: Convert to fraction form
    223,481.24/335,432.54 = 81,463.79/x
  3. Step 3: Cross multiply
    223,481.24x = 335,432.54 × 81,463.79
  4. Step 4: Simplify right side
    223,481.24x = 27,325,604,694.93
  5. Step 5: Solve for x
    x = 27,325,604,694.93/223,481.24
  6. Step 6: Final answer
    x = 122,272.47

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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.