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Finding the Fourth Proportional to 68,396.89, 102,627.83 and 47,369.29

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Solution

The fourth proportional to 68,396.89, 102,627.83 and 47,369.29 is: 71,076.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,396.89 : 102,627.83 = 47,369.29 : x
  2. Step 2: Convert to fraction form
    68,396.89/102,627.83 = 47,369.29/x
  3. Step 3: Cross multiply
    68,396.89x = 102,627.83 × 47,369.29
  4. Step 4: Simplify right side
    68,396.89x = 4,861,407,204.49
  5. Step 5: Solve for x
    x = 4,861,407,204.49/68,396.89
  6. Step 6: Final answer
    x = 71,076.44

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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.