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Finding the Fourth Proportional to 396,113.58, 594,128.25 and 111,797.10

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Solution

The fourth proportional to 396,113.58, 594,128.25 and 111,797.10 is: 167,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,113.58 : 594,128.25 = 111,797.10 : x
  2. Step 2: Convert to fraction form
    396,113.58/594,128.25 = 111,797.10/x
  3. Step 3: Cross multiply
    396,113.58x = 594,128.25 × 111,797.10
  4. Step 4: Simplify right side
    396,113.58x = 66,421,815,378.08
  5. Step 5: Solve for x
    x = 66,421,815,378.08/396,113.58
  6. Step 6: Final answer
    x = 167,683.76

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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.