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Finding the Fourth Proportional to 493,108.88, 739,696.11 and 173,221.85

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Solution

The fourth proportional to 493,108.88, 739,696.11 and 173,221.85 is: 259,844.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,108.88 : 739,696.11 = 173,221.85 : x
  2. Step 2: Convert to fraction form
    493,108.88/739,696.11 = 173,221.85/x
  3. Step 3: Cross multiply
    493,108.88x = 739,696.11 × 173,221.85
  4. Step 4: Simplify right side
    493,108.88x = 128,131,524,913.52
  5. Step 5: Solve for x
    x = 128,131,524,913.52/493,108.88
  6. Step 6: Final answer
    x = 259,844.29

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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.