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Finding the Fourth Proportional to 79,198.44, 109,295.52 and 43,389.96

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Solution

The fourth proportional to 79,198.44, 109,295.52 and 43,389.96 is: 59,879.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,198.44 : 109,295.52 = 43,389.96 : x
  2. Step 2: Convert to fraction form
    79,198.44/109,295.52 = 43,389.96/x
  3. Step 3: Cross multiply
    79,198.44x = 109,295.52 × 43,389.96
  4. Step 4: Simplify right side
    79,198.44x = 4,742,328,240.98
  5. Step 5: Solve for x
    x = 4,742,328,240.98/79,198.44
  6. Step 6: Final answer
    x = 59,879.06

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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.