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Finding the Fourth Proportional to 222,438.70, 333,658.05 and 220,105.90

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Solution

The fourth proportional to 222,438.70, 333,658.05 and 220,105.90 is: 330,158.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,438.70 : 333,658.05 = 220,105.90 : x
  2. Step 2: Convert to fraction form
    222,438.70/333,658.05 = 220,105.90/x
  3. Step 3: Cross multiply
    222,438.70x = 333,658.05 × 220,105.90
  4. Step 4: Simplify right side
    222,438.70x = 73,440,105,387.50
  5. Step 5: Solve for x
    x = 73,440,105,387.50/222,438.70
  6. Step 6: Final answer
    x = 330,158.85

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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.