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Finding the Fourth Proportional to 225,914.22, 338,872.49 and 76,155.82

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Solution

The fourth proportional to 225,914.22, 338,872.49 and 76,155.82 is: 114,234.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,914.22 : 338,872.49 = 76,155.82 : x
  2. Step 2: Convert to fraction form
    225,914.22/338,872.49 = 76,155.82/x
  3. Step 3: Cross multiply
    225,914.22x = 338,872.49 × 76,155.82
  4. Step 4: Simplify right side
    225,914.22x = 25,807,112,351.39
  5. Step 5: Solve for x
    x = 25,807,112,351.39/225,914.22
  6. Step 6: Final answer
    x = 114,234.12

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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.