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Finding the Fourth Proportional to 68,983.26, 103,388.31 and 29,493.96

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Solution

The fourth proportional to 68,983.26, 103,388.31 and 29,493.96 is: 44,203.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,983.26 : 103,388.31 = 29,493.96 : x
  2. Step 2: Convert to fraction form
    68,983.26/103,388.31 = 29,493.96/x
  3. Step 3: Cross multiply
    68,983.26x = 103,388.31 × 29,493.96
  4. Step 4: Simplify right side
    68,983.26x = 3,049,330,679.61
  5. Step 5: Solve for x
    x = 3,049,330,679.61/68,983.26
  6. Step 6: Final answer
    x = 44,203.92

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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.