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Finding the Fourth Proportional to 68,568.20, 103,025.10 and 43,620.20

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Solution

The fourth proportional to 68,568.20, 103,025.10 and 43,620.20 is: 65,540.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,568.20 : 103,025.10 = 43,620.20 : x
  2. Step 2: Convert to fraction form
    68,568.20/103,025.10 = 43,620.20/x
  3. Step 3: Cross multiply
    68,568.20x = 103,025.10 × 43,620.20
  4. Step 4: Simplify right side
    68,568.20x = 4,493,975,467.02
  5. Step 5: Solve for x
    x = 4,493,975,467.02/68,568.20
  6. Step 6: Final answer
    x = 65,540.23

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1.5x scale

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.