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Finding the Fourth Proportional to 68,684.53, 103,093.29 and 33,170.79

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Solution

The fourth proportional to 68,684.53, 103,093.29 and 33,170.79 is: 49,788.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,684.53 : 103,093.29 = 33,170.79 : x
  2. Step 2: Convert to fraction form
    68,684.53/103,093.29 = 33,170.79/x
  3. Step 3: Cross multiply
    68,684.53x = 103,093.29 × 33,170.79
  4. Step 4: Simplify right side
    68,684.53x = 3,419,685,707.15
  5. Step 5: Solve for x
    x = 3,419,685,707.15/68,684.53
  6. Step 6: Final answer
    x = 49,788.30

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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.