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Finding the Fourth Proportional to 172,882.35, 259,318.97 and 73,015.73

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Solution

The fourth proportional to 172,882.35, 259,318.97 and 73,015.73 is: 109,521.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,882.35 : 259,318.97 = 73,015.73 : x
  2. Step 2: Convert to fraction form
    172,882.35/259,318.97 = 73,015.73/x
  3. Step 3: Cross multiply
    172,882.35x = 259,318.97 × 73,015.73
  4. Step 4: Simplify right side
    172,882.35x = 18,934,363,481.98
  5. Step 5: Solve for x
    x = 18,934,363,481.98/172,882.35
  6. Step 6: Final answer
    x = 109,521.67

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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.