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Finding the Fourth Proportional to 68,993.91, 103,526.10 and 29,540.43

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Solution

The fourth proportional to 68,993.91, 103,526.10 and 29,540.43 is: 44,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,993.91 : 103,526.10 = 29,540.43 : x
  2. Step 2: Convert to fraction form
    68,993.91/103,526.10 = 29,540.43/x
  3. Step 3: Cross multiply
    68,993.91x = 103,526.10 × 29,540.43
  4. Step 4: Simplify right side
    68,993.91x = 3,058,205,510.22
  5. Step 5: Solve for x
    x = 3,058,205,510.22/68,993.91
  6. Step 6: Final answer
    x = 44,325.73

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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.