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Finding the Fourth Proportional to 188,401.75, 259,930.11 and 116,755.63

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Solution

The fourth proportional to 188,401.75, 259,930.11 and 116,755.63 is: 161,082.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,401.75 : 259,930.11 = 116,755.63 : x
  2. Step 2: Convert to fraction form
    188,401.75/259,930.11 = 116,755.63/x
  3. Step 3: Cross multiply
    188,401.75x = 259,930.11 × 116,755.63
  4. Step 4: Simplify right side
    188,401.75x = 30,348,303,537.03
  5. Step 5: Solve for x
    x = 30,348,303,537.03/188,401.75
  6. Step 6: Final answer
    x = 161,082.92

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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.