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Finding the Fourth Proportional to 263,322.38, 363,428.36 and 161,404.54

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Solution

The fourth proportional to 263,322.38, 363,428.36 and 161,404.54 is: 222,764.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,322.38 : 363,428.36 = 161,404.54 : x
  2. Step 2: Convert to fraction form
    263,322.38/363,428.36 = 161,404.54/x
  3. Step 3: Cross multiply
    263,322.38x = 363,428.36 × 161,404.54
  4. Step 4: Simplify right side
    263,322.38x = 58,658,987,268.75
  5. Step 5: Solve for x
    x = 58,658,987,268.75/263,322.38
  6. Step 6: Final answer
    x = 222,764.91

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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.