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Finding the Fourth Proportional to 225,953.22, 338,958.09 and 68,181.42

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Solution

The fourth proportional to 225,953.22, 338,958.09 and 68,181.42 is: 102,280.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,953.22 : 338,958.09 = 68,181.42 : x
  2. Step 2: Convert to fraction form
    225,953.22/338,958.09 = 68,181.42/x
  3. Step 3: Cross multiply
    225,953.22x = 338,958.09 × 68,181.42
  4. Step 4: Simplify right side
    225,953.22x = 23,110,643,896.69
  5. Step 5: Solve for x
    x = 23,110,643,896.69/225,953.22
  6. Step 6: Final answer
    x = 102,280.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.