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Finding the Fourth Proportional to 188,351.44, 259,974.30 and 116,690.74

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Solution

The fourth proportional to 188,351.44, 259,974.30 and 116,690.74 is: 161,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,351.44 : 259,974.30 = 116,690.74 : x
  2. Step 2: Convert to fraction form
    188,351.44/259,974.30 = 116,690.74/x
  3. Step 3: Cross multiply
    188,351.44x = 259,974.30 × 116,690.74
  4. Step 4: Simplify right side
    188,351.44x = 30,336,593,447.98
  5. Step 5: Solve for x
    x = 30,336,593,447.98/188,351.44
  6. Step 6: Final answer
    x = 161,063.77

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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.