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Finding the Fourth Proportional to 188,398.26, 259,811.46 and 123,753.44

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Solution

The fourth proportional to 188,398.26, 259,811.46 and 123,753.44 is: 170,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,398.26 : 259,811.46 = 123,753.44 : x
  2. Step 2: Convert to fraction form
    188,398.26/259,811.46 = 123,753.44/x
  3. Step 3: Cross multiply
    188,398.26x = 259,811.46 × 123,753.44
  4. Step 4: Simplify right side
    188,398.26x = 32,152,561,926.42
  5. Step 5: Solve for x
    x = 32,152,561,926.42/188,398.26
  6. Step 6: Final answer
    x = 170,662.73

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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.