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Finding the Fourth Proportional to 159,454.44, 220,057.11 and 87,834.42

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Solution

The fourth proportional to 159,454.44, 220,057.11 and 87,834.42 is: 121,217.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,454.44 : 220,057.11 = 87,834.42 : x
  2. Step 2: Convert to fraction form
    159,454.44/220,057.11 = 87,834.42/x
  3. Step 3: Cross multiply
    159,454.44x = 220,057.11 × 87,834.42
  4. Step 4: Simplify right side
    159,454.44x = 19,328,588,623.73
  5. Step 5: Solve for x
    x = 19,328,588,623.73/159,454.44
  6. Step 6: Final answer
    x = 121,217.00

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.