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Finding the Fourth Proportional to 226,478.80, 339,912.60 and 100,313.20

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Solution

The fourth proportional to 226,478.80, 339,912.60 and 100,313.20 is: 150,555.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,478.80 : 339,912.60 = 100,313.20 : x
  2. Step 2: Convert to fraction form
    226,478.80/339,912.60 = 100,313.20/x
  3. Step 3: Cross multiply
    226,478.80x = 339,912.60 × 100,313.20
  4. Step 4: Simplify right side
    226,478.80x = 34,097,720,626.32
  5. Step 5: Solve for x
    x = 34,097,720,626.32/226,478.80
  6. Step 6: Final answer
    x = 150,555.90

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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.