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Finding the Fourth Proportional to 68,556.90, 102,858.66 and 36,969.96

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Solution

The fourth proportional to 68,556.90, 102,858.66 and 36,969.96 is: 55,467.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,556.90 : 102,858.66 = 36,969.96 : x
  2. Step 2: Convert to fraction form
    68,556.90/102,858.66 = 36,969.96/x
  3. Step 3: Cross multiply
    68,556.90x = 102,858.66 × 36,969.96
  4. Step 4: Simplify right side
    68,556.90x = 3,802,680,545.85
  5. Step 5: Solve for x
    x = 3,802,680,545.85/68,556.90
  6. Step 6: Final answer
    x = 55,467.51

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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.