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Finding the Fourth Proportional to 396,354.90, 594,571.22 and 112,047.60

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Solution

The fourth proportional to 396,354.90, 594,571.22 and 112,047.60 is: 168,082.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,354.90 : 594,571.22 = 112,047.60 : x
  2. Step 2: Convert to fraction form
    396,354.90/594,571.22 = 112,047.60/x
  3. Step 3: Cross multiply
    396,354.90x = 594,571.22 × 112,047.60
  4. Step 4: Simplify right side
    396,354.90x = 66,620,278,230.07
  5. Step 5: Solve for x
    x = 66,620,278,230.07/396,354.90
  6. Step 6: Final answer
    x = 168,082.39

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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.