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Finding the Fourth Proportional to 425,879.48, 638,819.22 and 110,336.42

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Solution

The fourth proportional to 425,879.48, 638,819.22 and 110,336.42 is: 165,504.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,879.48 : 638,819.22 = 110,336.42 : x
  2. Step 2: Convert to fraction form
    425,879.48/638,819.22 = 110,336.42/x
  3. Step 3: Cross multiply
    425,879.48x = 638,819.22 × 110,336.42
  4. Step 4: Simplify right side
    425,879.48x = 70,485,025,761.99
  5. Step 5: Solve for x
    x = 70,485,025,761.99/425,879.48
  6. Step 6: Final answer
    x = 165,504.63

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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.