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Finding the Fourth Proportional to 172,974.49, 259,383.77 and 73,083.26

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Solution

The fourth proportional to 172,974.49, 259,383.77 and 73,083.26 is: 109,591.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,974.49 : 259,383.77 = 73,083.26 : x
  2. Step 2: Convert to fraction form
    172,974.49/259,383.77 = 73,083.26/x
  3. Step 3: Cross multiply
    172,974.49x = 259,383.77 × 73,083.26
  4. Step 4: Simplify right side
    172,974.49x = 18,956,612,059.80
  5. Step 5: Solve for x
    x = 18,956,612,059.80/172,974.49
  6. Step 6: Final answer
    x = 109,591.95

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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.