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Finding the Fourth Proportional to 68,879.94, 103,319.91 and 22,165.62

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Solution

The fourth proportional to 68,879.94, 103,319.91 and 22,165.62 is: 33,248.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,879.94 : 103,319.91 = 22,165.62 : x
  2. Step 2: Convert to fraction form
    68,879.94/103,319.91 = 22,165.62/x
  3. Step 3: Cross multiply
    68,879.94x = 103,319.91 × 22,165.62
  4. Step 4: Simplify right side
    68,879.94x = 2,290,149,863.49
  5. Step 5: Solve for x
    x = 2,290,149,863.49/68,879.94
  6. Step 6: Final answer
    x = 33,248.43

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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.