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Finding the Fourth Proportional to 422,450.70, 633,600.33 and 118,772.03

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Solution

The fourth proportional to 422,450.70, 633,600.33 and 118,772.03 is: 178,136.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,450.70 : 633,600.33 = 118,772.03 : x
  2. Step 2: Convert to fraction form
    422,450.70/633,600.33 = 118,772.03/x
  3. Step 3: Cross multiply
    422,450.70x = 633,600.33 × 118,772.03
  4. Step 4: Simplify right side
    422,450.70x = 75,253,996,174.48
  5. Step 5: Solve for x
    x = 75,253,996,174.48/422,450.70
  6. Step 6: Final answer
    x = 178,136.75

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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.