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Finding the Fourth Proportional to 68,910.93, 103,344.52 and 22,152.87

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Solution

The fourth proportional to 68,910.93, 103,344.52 and 22,152.87 is: 33,222.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,910.93 : 103,344.52 = 22,152.87 : x
  2. Step 2: Convert to fraction form
    68,910.93/103,344.52 = 22,152.87/x
  3. Step 3: Cross multiply
    68,910.93x = 103,344.52 × 22,152.87
  4. Step 4: Simplify right side
    68,910.93x = 2,289,377,443.42
  5. Step 5: Solve for x
    x = 2,289,377,443.42/68,910.93
  6. Step 6: Final answer
    x = 33,222.27

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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.