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Finding the Fourth Proportional to 379,319.44, 568,978.88 and 113,073.12

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Solution

The fourth proportional to 379,319.44, 568,978.88 and 113,073.12 is: 169,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,319.44 : 568,978.88 = 113,073.12 : x
  2. Step 2: Convert to fraction form
    379,319.44/568,978.88 = 113,073.12/x
  3. Step 3: Cross multiply
    379,319.44x = 568,978.88 × 113,073.12
  4. Step 4: Simplify right side
    379,319.44x = 64,336,217,175.71
  5. Step 5: Solve for x
    x = 64,336,217,175.71/379,319.44
  6. Step 6: Final answer
    x = 169,609.60

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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.