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Finding the Fourth Proportional to 220,732.80, 331,444.80 and 150,921.60

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Solution

The fourth proportional to 220,732.80, 331,444.80 and 150,921.60 is: 226,618.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,732.80 : 331,444.80 = 150,921.60 : x
  2. Step 2: Convert to fraction form
    220,732.80/331,444.80 = 150,921.60/x
  3. Step 3: Cross multiply
    220,732.80x = 331,444.80 × 150,921.60
  4. Step 4: Simplify right side
    220,732.80x = 50,022,179,527.68
  5. Step 5: Solve for x
    x = 50,022,179,527.68/220,732.80
  6. Step 6: Final answer
    x = 226,618.70

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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.