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Finding the Fourth Proportional to 220,072.20, 330,108.30 and 220,072.20

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Solution

The fourth proportional to 220,072.20, 330,108.30 and 220,072.20 is: 330,108.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,072.20 : 330,108.30 = 220,072.20 : x
  2. Step 2: Convert to fraction form
    220,072.20/330,108.30 = 220,072.20/x
  3. Step 3: Cross multiply
    220,072.20x = 330,108.30 × 220,072.20
  4. Step 4: Simplify right side
    220,072.20x = 72,647,659,819.26
  5. Step 5: Solve for x
    x = 72,647,659,819.26/220,072.20
  6. Step 6: Final answer
    x = 330,108.30

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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.