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Finding the Fourth Proportional to 396,167.20, 594,121.20 and 146,816.80

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Solution

The fourth proportional to 396,167.20, 594,121.20 and 146,816.80 is: 220,177.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,167.20 : 594,121.20 = 146,816.80 : x
  2. Step 2: Convert to fraction form
    396,167.20/594,121.20 = 146,816.80/x
  3. Step 3: Cross multiply
    396,167.20x = 594,121.20 × 146,816.80
  4. Step 4: Simplify right side
    396,167.20x = 87,226,973,396.16
  5. Step 5: Solve for x
    x = 87,226,973,396.16/396,167.20
  6. Step 6: Final answer
    x = 220,177.17

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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.