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Finding the Fourth Proportional to 172,757.18, 259,168.44 and 67,569.50

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Solution

The fourth proportional to 172,757.18, 259,168.44 and 67,569.50 is: 101,367.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,757.18 : 259,168.44 = 67,569.50 : x
  2. Step 2: Convert to fraction form
    172,757.18/259,168.44 = 67,569.50/x
  3. Step 3: Cross multiply
    172,757.18x = 259,168.44 × 67,569.50
  4. Step 4: Simplify right side
    172,757.18x = 17,511,881,906.58
  5. Step 5: Solve for x
    x = 17,511,881,906.58/172,757.18
  6. Step 6: Final answer
    x = 101,367.03

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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.