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Finding the Fourth Proportional to 308,763.75, 426,093.98 and 167,451.75

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Solution

The fourth proportional to 308,763.75, 426,093.98 and 167,451.75 is: 231,083.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,763.75 : 426,093.98 = 167,451.75 : x
  2. Step 2: Convert to fraction form
    308,763.75/426,093.98 = 167,451.75/x
  3. Step 3: Cross multiply
    308,763.75x = 426,093.98 × 167,451.75
  4. Step 4: Simplify right side
    308,763.75x = 71,350,181,778.21
  5. Step 5: Solve for x
    x = 71,350,181,778.21/308,763.75
  6. Step 6: Final answer
    x = 231,083.42

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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.