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Finding the Fourth Proportional to 68,634.83, 102,995.99 and 29,191.88

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Solution

The fourth proportional to 68,634.83, 102,995.99 and 29,191.88 is: 43,806.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,634.83 : 102,995.99 = 29,191.88 : x
  2. Step 2: Convert to fraction form
    68,634.83/102,995.99 = 29,191.88/x
  3. Step 3: Cross multiply
    68,634.83x = 102,995.99 × 29,191.88
  4. Step 4: Simplify right side
    68,634.83x = 3,006,645,919.62
  5. Step 5: Solve for x
    x = 3,006,645,919.62/68,634.83
  6. Step 6: Final answer
    x = 43,806.42

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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.