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Finding the Fourth Proportional to 141,218.59, 194,879.52 and 80,804.08

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Solution

The fourth proportional to 141,218.59, 194,879.52 and 80,804.08 is: 111,508.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,218.59 : 194,879.52 = 80,804.08 : x
  2. Step 2: Convert to fraction form
    141,218.59/194,879.52 = 80,804.08/x
  3. Step 3: Cross multiply
    141,218.59x = 194,879.52 × 80,804.08
  4. Step 4: Simplify right side
    141,218.59x = 15,747,060,324.44
  5. Step 5: Solve for x
    x = 15,747,060,324.44/141,218.59
  6. Step 6: Final answer
    x = 111,508.41

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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.