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Finding the Fourth Proportional to 68,364.60, 102,546.90 and 41,983.80

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Solution

The fourth proportional to 68,364.60, 102,546.90 and 41,983.80 is: 62,975.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,364.60 : 102,546.90 = 41,983.80 : x
  2. Step 2: Convert to fraction form
    68,364.60/102,546.90 = 41,983.80/x
  3. Step 3: Cross multiply
    68,364.60x = 102,546.90 × 41,983.80
  4. Step 4: Simplify right side
    68,364.60x = 4,305,308,540.22
  5. Step 5: Solve for x
    x = 4,305,308,540.22/68,364.60
  6. Step 6: Final answer
    x = 62,975.70

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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.