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Finding the Fourth Proportional to 173,240.46, 259,651.41 and 84,360.78

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Solution

The fourth proportional to 173,240.46, 259,651.41 and 84,360.78 is: 126,439.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,240.46 : 259,651.41 = 84,360.78 : x
  2. Step 2: Convert to fraction form
    173,240.46/259,651.41 = 84,360.78/x
  3. Step 3: Cross multiply
    173,240.46x = 259,651.41 × 84,360.78
  4. Step 4: Simplify right side
    173,240.46x = 21,904,395,475.70
  5. Step 5: Solve for x
    x = 21,904,395,475.70/173,240.46
  6. Step 6: Final answer
    x = 126,439.26

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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.