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Finding the Fourth Proportional to 68,023.20, 102,034.80 and 63,616.80

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Solution

The fourth proportional to 68,023.20, 102,034.80 and 63,616.80 is: 95,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,023.20 : 102,034.80 = 63,616.80 : x
  2. Step 2: Convert to fraction form
    68,023.20/102,034.80 = 63,616.80/x
  3. Step 3: Cross multiply
    68,023.20x = 102,034.80 × 63,616.80
  4. Step 4: Simplify right side
    68,023.20x = 6,491,127,464.64
  5. Step 5: Solve for x
    x = 6,491,127,464.64/68,023.20
  6. Step 6: Final answer
    x = 95,425.20

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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.