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Finding the Fourth Proportional to 172,943.97, 259,494.76 and 88,763.24

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Solution

The fourth proportional to 172,943.97, 259,494.76 and 88,763.24 is: 133,185.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,943.97 : 259,494.76 = 88,763.24 : x
  2. Step 2: Convert to fraction form
    172,943.97/259,494.76 = 88,763.24/x
  3. Step 3: Cross multiply
    172,943.97x = 259,494.76 × 88,763.24
  4. Step 4: Simplify right side
    172,943.97x = 23,033,595,660.62
  5. Step 5: Solve for x
    x = 23,033,595,660.62/172,943.97
  6. Step 6: Final answer
    x = 133,185.31

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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.