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Finding the Fourth Proportional to 68,556.58, 102,786.57 and 26,401.34

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Solution

The fourth proportional to 68,556.58, 102,786.57 and 26,401.34 is: 39,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,556.58 : 102,786.57 = 26,401.34 : x
  2. Step 2: Convert to fraction form
    68,556.58/102,786.57 = 26,401.34/x
  3. Step 3: Cross multiply
    68,556.58x = 102,786.57 × 26,401.34
  4. Step 4: Simplify right side
    68,556.58x = 2,713,703,438.97
  5. Step 5: Solve for x
    x = 2,713,703,438.97/68,556.58
  6. Step 6: Final answer
    x = 39,583.41

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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.