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Finding the Fourth Proportional to 269,992.74, 372,587.65 and 149,142.47

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Solution

The fourth proportional to 269,992.74, 372,587.65 and 149,142.47 is: 205,815.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,992.74 : 372,587.65 = 149,142.47 : x
  2. Step 2: Convert to fraction form
    269,992.74/372,587.65 = 149,142.47/x
  3. Step 3: Cross multiply
    269,992.74x = 372,587.65 × 149,142.47
  4. Step 4: Simplify right side
    269,992.74x = 55,568,640,176.70
  5. Step 5: Solve for x
    x = 55,568,640,176.70/269,992.74
  6. Step 6: Final answer
    x = 205,815.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.