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Finding the Fourth Proportional to 172,766.86, 259,187.21 and 60,450.75

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Solution

The fourth proportional to 172,766.86, 259,187.21 and 60,450.75 is: 90,689.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,766.86 : 259,187.21 = 60,450.75 : x
  2. Step 2: Convert to fraction form
    172,766.86/259,187.21 = 60,450.75/x
  3. Step 3: Cross multiply
    172,766.86x = 259,187.21 × 60,450.75
  4. Step 4: Simplify right side
    172,766.86x = 15,668,061,234.91
  5. Step 5: Solve for x
    x = 15,668,061,234.91/172,766.86
  6. Step 6: Final answer
    x = 90,689.04

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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.