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Finding the Fourth Proportional to 220,229.70, 330,453.90 and 125,532.60

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Solution

The fourth proportional to 220,229.70, 330,453.90 and 125,532.60 is: 188,361.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,229.70 : 330,453.90 = 125,532.60 : x
  2. Step 2: Convert to fraction form
    220,229.70/330,453.90 = 125,532.60/x
  3. Step 3: Cross multiply
    220,229.70x = 330,453.90 × 125,532.60
  4. Step 4: Simplify right side
    220,229.70x = 41,482,737,247.14
  5. Step 5: Solve for x
    x = 41,482,737,247.14/220,229.70
  6. Step 6: Final answer
    x = 188,361.23

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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.