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Finding the Fourth Proportional to 225,893.81, 338,841.88 and 76,135.39

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Solution

The fourth proportional to 225,893.81, 338,841.88 and 76,135.39 is: 114,203.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,893.81 : 338,841.88 = 76,135.39 : x
  2. Step 2: Convert to fraction form
    225,893.81/338,841.88 = 76,135.39/x
  3. Step 3: Cross multiply
    225,893.81x = 338,841.88 × 76,135.39
  4. Step 4: Simplify right side
    225,893.81x = 25,797,859,497.14
  5. Step 5: Solve for x
    x = 25,797,859,497.14/225,893.81
  6. Step 6: Final answer
    x = 114,203.48

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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.