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Finding the Fourth Proportional to 172,761.03, 259,163.37 and 67,566.33

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Solution

The fourth proportional to 172,761.03, 259,163.37 and 67,566.33 is: 101,358.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,761.03 : 259,163.37 = 67,566.33 : x
  2. Step 2: Convert to fraction form
    172,761.03/259,163.37 = 67,566.33/x
  3. Step 3: Cross multiply
    172,761.03x = 259,163.37 × 67,566.33
  4. Step 4: Simplify right side
    172,761.03x = 17,510,717,781.33
  5. Step 5: Solve for x
    x = 17,510,717,781.33/172,761.03
  6. Step 6: Final answer
    x = 101,358.03

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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.