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Finding the Fourth Proportional to 68,747.40, 103,121.10 and 24,375.60

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Solution

The fourth proportional to 68,747.40, 103,121.10 and 24,375.60 is: 36,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,747.40 : 103,121.10 = 24,375.60 : x
  2. Step 2: Convert to fraction form
    68,747.40/103,121.10 = 24,375.60/x
  3. Step 3: Cross multiply
    68,747.40x = 103,121.10 × 24,375.60
  4. Step 4: Simplify right side
    68,747.40x = 2,513,638,685.16
  5. Step 5: Solve for x
    x = 2,513,638,685.16/68,747.40
  6. Step 6: Final answer
    x = 36,563.40

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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.