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Finding the Fourth Proportional to 225,027.20, 337,540.80 and 91,863.20

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Solution

The fourth proportional to 225,027.20, 337,540.80 and 91,863.20 is: 137,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,027.20 : 337,540.80 = 91,863.20 : x
  2. Step 2: Convert to fraction form
    225,027.20/337,540.80 = 91,863.20/x
  3. Step 3: Cross multiply
    225,027.20x = 337,540.80 × 91,863.20
  4. Step 4: Simplify right side
    225,027.20x = 31,007,578,018.56
  5. Step 5: Solve for x
    x = 31,007,578,018.56/225,027.20
  6. Step 6: Final answer
    x = 137,794.80

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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.