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Finding the Fourth Proportional to 286,234.62, 394,996.10 and 171,578.04

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Solution

The fourth proportional to 286,234.62, 394,996.10 and 171,578.04 is: 236,773.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,234.62 : 394,996.10 = 171,578.04 : x
  2. Step 2: Convert to fraction form
    286,234.62/394,996.10 = 171,578.04/x
  3. Step 3: Cross multiply
    286,234.62x = 394,996.10 × 171,578.04
  4. Step 4: Simplify right side
    286,234.62x = 67,772,656,645.64
  5. Step 5: Solve for x
    x = 67,772,656,645.64/286,234.62
  6. Step 6: Final answer
    x = 236,773.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.