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Finding the Fourth Proportional to 396,993.87, 595,156.01 and 172,184.98

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Solution

The fourth proportional to 396,993.87, 595,156.01 and 172,184.98 is: 258,132.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,993.87 : 595,156.01 = 172,184.98 : x
  2. Step 2: Convert to fraction form
    396,993.87/595,156.01 = 172,184.98/x
  3. Step 3: Cross multiply
    396,993.87x = 595,156.01 × 172,184.98
  4. Step 4: Simplify right side
    396,993.87x = 102,476,925,678.73
  5. Step 5: Solve for x
    x = 102,476,925,678.73/396,993.87
  6. Step 6: Final answer
    x = 258,132.26

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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.