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Finding the Fourth Proportional to 220,226.70, 330,449.40 and 125,529.60

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Solution

The fourth proportional to 220,226.70, 330,449.40 and 125,529.60 is: 188,356.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,226.70 : 330,449.40 = 125,529.60 : x
  2. Step 2: Convert to fraction form
    220,226.70/330,449.40 = 125,529.60/x
  3. Step 3: Cross multiply
    220,226.70x = 330,449.40 × 125,529.60
  4. Step 4: Simplify right side
    220,226.70x = 41,481,181,002.24
  5. Step 5: Solve for x
    x = 41,481,181,002.24/220,226.70
  6. Step 6: Final answer
    x = 188,356.73

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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.