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Finding the Fourth Proportional to 220,105.45, 330,158.18 and 220,105.45

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Solution

The fourth proportional to 220,105.45, 330,158.18 and 220,105.45 is: 330,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,105.45 : 330,158.18 = 220,105.45 : x
  2. Step 2: Convert to fraction form
    220,105.45/330,158.18 = 220,105.45/x
  3. Step 3: Cross multiply
    220,105.45x = 330,158.18 × 220,105.45
  4. Step 4: Simplify right side
    220,105.45x = 72,669,614,780.08
  5. Step 5: Solve for x
    x = 72,669,614,780.08/220,105.45
  6. Step 6: Final answer
    x = 330,158.18

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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.