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Finding the Fourth Proportional to 241,073.66, 361,540.78 and 81,131.97

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Solution

The fourth proportional to 241,073.66, 361,540.78 and 81,131.97 is: 121,674.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,073.66 : 361,540.78 = 81,131.97 : x
  2. Step 2: Convert to fraction form
    241,073.66/361,540.78 = 81,131.97/x
  3. Step 3: Cross multiply
    241,073.66x = 361,540.78 × 81,131.97
  4. Step 4: Simplify right side
    241,073.66x = 29,332,515,513.91
  5. Step 5: Solve for x
    x = 29,332,515,513.91/241,073.66
  6. Step 6: Final answer
    x = 121,674.49

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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.