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Finding the Fourth Proportional to 263,301.64, 363,399.72 and 161,383.79

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Solution

The fourth proportional to 263,301.64, 363,399.72 and 161,383.79 is: 222,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,301.64 : 363,399.72 = 161,383.79 : x
  2. Step 2: Convert to fraction form
    263,301.64/363,399.72 = 161,383.79/x
  3. Step 3: Cross multiply
    263,301.64x = 363,399.72 × 161,383.79
  4. Step 4: Simplify right side
    263,301.64x = 58,646,824,401.85
  5. Step 5: Solve for x
    x = 58,646,824,401.85/263,301.64
  6. Step 6: Final answer
    x = 222,736.27

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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.