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Finding the Fourth Proportional to 172,879.52, 259,421.32 and 73,033.24

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Solution

The fourth proportional to 172,879.52, 259,421.32 and 73,033.24 is: 109,592.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,879.52 : 259,421.32 = 73,033.24 : x
  2. Step 2: Convert to fraction form
    172,879.52/259,421.32 = 73,033.24/x
  3. Step 3: Cross multiply
    172,879.52x = 259,421.32 × 73,033.24
  4. Step 4: Simplify right side
    172,879.52x = 18,946,379,524.68
  5. Step 5: Solve for x
    x = 18,946,379,524.68/172,879.52
  6. Step 6: Final answer
    x = 109,592.97

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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.