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Finding the Fourth Proportional to 225,787.44, 338,676.30 and 68,012.40

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Solution

The fourth proportional to 225,787.44, 338,676.30 and 68,012.40 is: 102,017.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,787.44 : 338,676.30 = 68,012.40 : x
  2. Step 2: Convert to fraction form
    225,787.44/338,676.30 = 68,012.40/x
  3. Step 3: Cross multiply
    225,787.44x = 338,676.30 × 68,012.40
  4. Step 4: Simplify right side
    225,787.44x = 23,034,187,986.12
  5. Step 5: Solve for x
    x = 23,034,187,986.12/225,787.44
  6. Step 6: Final answer
    x = 102,017.14

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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.