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Finding the Fourth Proportional to 68,049.62, 101,998.77 and 51,355.52

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Solution

The fourth proportional to 68,049.62, 101,998.77 and 51,355.52 is: 76,976.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,049.62 : 101,998.77 = 51,355.52 : x
  2. Step 2: Convert to fraction form
    68,049.62/101,998.77 = 51,355.52/x
  3. Step 3: Cross multiply
    68,049.62x = 101,998.77 × 51,355.52
  4. Step 4: Simplify right side
    68,049.62x = 5,238,199,362.72
  5. Step 5: Solve for x
    x = 5,238,199,362.72/68,049.62
  6. Step 6: Final answer
    x = 76,976.18

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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.