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Finding the Fourth Proportional to 225,616.72, 338,394.84 and 107,363.20

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Solution

The fourth proportional to 225,616.72, 338,394.84 and 107,363.20 is: 161,030.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,616.72 : 338,394.84 = 107,363.20 : x
  2. Step 2: Convert to fraction form
    225,616.72/338,394.84 = 107,363.20/x
  3. Step 3: Cross multiply
    225,616.72x = 338,394.84 × 107,363.20
  4. Step 4: Simplify right side
    225,616.72x = 36,331,152,885.89
  5. Step 5: Solve for x
    x = 36,331,152,885.89/225,616.72
  6. Step 6: Final answer
    x = 161,030.41

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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.