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Finding the Fourth Proportional to 396,387.61, 594,601.37 and 112,098.58

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Solution

The fourth proportional to 396,387.61, 594,601.37 and 112,098.58 is: 168,153.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,387.61 : 594,601.37 = 112,098.58 : x
  2. Step 2: Convert to fraction form
    396,387.61/594,601.37 = 112,098.58/x
  3. Step 3: Cross multiply
    396,387.61x = 594,601.37 × 112,098.58
  4. Step 4: Simplify right side
    396,387.61x = 66,653,968,682.56
  5. Step 5: Solve for x
    x = 66,653,968,682.56/396,387.61
  6. Step 6: Final answer
    x = 168,153.51

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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.