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Finding the Fourth Proportional to 172,866.11, 259,239.17 and 60,543.83

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Solution

The fourth proportional to 172,866.11, 259,239.17 and 60,543.83 is: 90,794.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,866.11 : 259,239.17 = 60,543.83 : x
  2. Step 2: Convert to fraction form
    172,866.11/259,239.17 = 60,543.83/x
  3. Step 3: Cross multiply
    172,866.11x = 259,239.17 × 60,543.83
  4. Step 4: Simplify right side
    172,866.11x = 15,695,330,638.91
  5. Step 5: Solve for x
    x = 15,695,330,638.91/172,866.11
  6. Step 6: Final answer
    x = 90,794.73

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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.