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Finding the Fourth Proportional to 253,934.91, 350,360.78 and 158,456.97

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Solution

The fourth proportional to 253,934.91, 350,360.78 and 158,456.97 is: 218,627.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,934.91 : 350,360.78 = 158,456.97 : x
  2. Step 2: Convert to fraction form
    253,934.91/350,360.78 = 158,456.97/x
  3. Step 3: Cross multiply
    253,934.91x = 350,360.78 × 158,456.97
  4. Step 4: Simplify right side
    253,934.91x = 55,517,106,813.35
  5. Step 5: Solve for x
    x = 55,517,106,813.35/253,934.91
  6. Step 6: Final answer
    x = 218,627.31

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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.