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Finding the Fourth Proportional to 68,103.99, 102,232.53 and 28,694.25

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Solution

The fourth proportional to 68,103.99, 102,232.53 and 28,694.25 is: 43,073.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,103.99 : 102,232.53 = 28,694.25 : x
  2. Step 2: Convert to fraction form
    68,103.99/102,232.53 = 28,694.25/x
  3. Step 3: Cross multiply
    68,103.99x = 102,232.53 × 28,694.25
  4. Step 4: Simplify right side
    68,103.99x = 2,933,485,773.95
  5. Step 5: Solve for x
    x = 2,933,485,773.95/68,103.99
  6. Step 6: Final answer
    x = 43,073.63

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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.