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Finding the Fourth Proportional to 68,366.84, 102,489.30 and 36,793.85

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Solution

The fourth proportional to 68,366.84, 102,489.30 and 36,793.85 is: 55,157.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,366.84 : 102,489.30 = 36,793.85 : x
  2. Step 2: Convert to fraction form
    68,366.84/102,489.30 = 36,793.85/x
  3. Step 3: Cross multiply
    68,366.84x = 102,489.30 × 36,793.85
  4. Step 4: Simplify right side
    68,366.84x = 3,770,975,418.36
  5. Step 5: Solve for x
    x = 3,770,975,418.36/68,366.84
  6. Step 6: Final answer
    x = 55,157.96

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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.