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Finding the Fourth Proportional to 225,821.34, 338,436.72 and 92,545.56

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Solution

The fourth proportional to 225,821.34, 338,436.72 and 92,545.56 is: 138,697.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,821.34 : 338,436.72 = 92,545.56 : x
  2. Step 2: Convert to fraction form
    225,821.34/338,436.72 = 92,545.56/x
  3. Step 3: Cross multiply
    225,821.34x = 338,436.72 × 92,545.56
  4. Step 4: Simplify right side
    225,821.34x = 31,320,815,776.96
  5. Step 5: Solve for x
    x = 31,320,815,776.96/225,821.34
  6. Step 6: Final answer
    x = 138,697.32

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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.