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Finding the Fourth Proportional to 68,559.60, 102,724.20 and 33,423.60

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Solution

The fourth proportional to 68,559.60, 102,724.20 and 33,423.60 is: 50,079.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,559.60 : 102,724.20 = 33,423.60 : x
  2. Step 2: Convert to fraction form
    68,559.60/102,724.20 = 33,423.60/x
  3. Step 3: Cross multiply
    68,559.60x = 102,724.20 × 33,423.60
  4. Step 4: Simplify right side
    68,559.60x = 3,433,412,571.12
  5. Step 5: Solve for x
    x = 3,433,412,571.12/68,559.60
  6. Step 6: Final answer
    x = 50,079.24

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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.