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Finding the Fourth Proportional to 168,092.29, 231,967.43 and 91,611.42

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Solution

The fourth proportional to 168,092.29, 231,967.43 and 91,611.42 is: 126,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,092.29 : 231,967.43 = 91,611.42 : x
  2. Step 2: Convert to fraction form
    168,092.29/231,967.43 = 91,611.42/x
  3. Step 3: Cross multiply
    168,092.29x = 231,967.43 × 91,611.42
  4. Step 4: Simplify right side
    168,092.29x = 21,250,865,656.05
  5. Step 5: Solve for x
    x = 21,250,865,656.05/168,092.29
  6. Step 6: Final answer
    x = 126,423.80

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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.