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Finding the Fourth Proportional to 135,662.70, 203,494.05 and 100,233.30

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Solution

The fourth proportional to 135,662.70, 203,494.05 and 100,233.30 is: 150,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,662.70 : 203,494.05 = 100,233.30 : x
  2. Step 2: Convert to fraction form
    135,662.70/203,494.05 = 100,233.30/x
  3. Step 3: Cross multiply
    135,662.70x = 203,494.05 × 100,233.30
  4. Step 4: Simplify right side
    135,662.70x = 20,396,880,161.87
  5. Step 5: Solve for x
    x = 20,396,880,161.87/135,662.70
  6. Step 6: Final answer
    x = 150,349.95

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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.