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Finding the Fourth Proportional to 172,984.44, 259,511.76 and 73,144.38

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Solution

The fourth proportional to 172,984.44, 259,511.76 and 73,144.38 is: 109,731.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,984.44 : 259,511.76 = 73,144.38 : x
  2. Step 2: Convert to fraction form
    172,984.44/259,511.76 = 73,144.38/x
  3. Step 3: Cross multiply
    172,984.44x = 259,511.76 × 73,144.38
  4. Step 4: Simplify right side
    172,984.44x = 18,981,826,787.91
  5. Step 5: Solve for x
    x = 18,981,826,787.91/172,984.44
  6. Step 6: Final answer
    x = 109,731.41

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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.