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Finding the Fourth Proportional to 490,067.44, 735,151.98 and 135,081.52

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Solution

The fourth proportional to 490,067.44, 735,151.98 and 135,081.52 is: 202,636.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,067.44 : 735,151.98 = 135,081.52 : x
  2. Step 2: Convert to fraction form
    490,067.44/735,151.98 = 135,081.52/x
  3. Step 3: Cross multiply
    490,067.44x = 735,151.98 × 135,081.52
  4. Step 4: Simplify right side
    490,067.44x = 99,305,446,889.41
  5. Step 5: Solve for x
    x = 99,305,446,889.41/490,067.44
  6. Step 6: Final answer
    x = 202,636.29

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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.