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Finding the Fourth Proportional to 218,991.91, 327,894.27 and 113,589.44

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Solution

The fourth proportional to 218,991.91, 327,894.27 and 113,589.44 is: 170,076.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,991.91 : 327,894.27 = 113,589.44 : x
  2. Step 2: Convert to fraction form
    218,991.91/327,894.27 = 113,589.44/x
  3. Step 3: Cross multiply
    218,991.91x = 327,894.27 × 113,589.44
  4. Step 4: Simplify right side
    218,991.91x = 37,245,326,508.51
  5. Step 5: Solve for x
    x = 37,245,326,508.51/218,991.91
  6. Step 6: Final answer
    x = 170,076.27

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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.