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Finding the Fourth Proportional to 73,081.68, 109,612.78 and 23,166.82

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Solution

The fourth proportional to 73,081.68, 109,612.78 and 23,166.82 is: 34,747.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,081.68 : 109,612.78 = 23,166.82 : x
  2. Step 2: Convert to fraction form
    73,081.68/109,612.78 = 23,166.82/x
  3. Step 3: Cross multiply
    73,081.68x = 109,612.78 × 23,166.82
  4. Step 4: Simplify right side
    73,081.68x = 2,539,379,874.94
  5. Step 5: Solve for x
    x = 2,539,379,874.94/73,081.68
  6. Step 6: Final answer
    x = 34,747.15

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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.