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Finding the Fourth Proportional to 188,399.26, 259,812.84 and 123,754.44

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Solution

The fourth proportional to 188,399.26, 259,812.84 and 123,754.44 is: 170,664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,399.26 : 259,812.84 = 123,754.44 : x
  2. Step 2: Convert to fraction form
    188,399.26/259,812.84 = 123,754.44/x
  3. Step 3: Cross multiply
    188,399.26x = 259,812.84 × 123,754.44
  4. Step 4: Simplify right side
    188,399.26x = 32,152,992,519.01
  5. Step 5: Solve for x
    x = 32,152,992,519.01/188,399.26
  6. Step 6: Final answer
    x = 170,664.11

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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.