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Finding the Fourth Proportional to 68,825.64, 103,228.72 and 22,072.44

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Solution

The fourth proportional to 68,825.64, 103,228.72 and 22,072.44 is: 33,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,825.64 : 103,228.72 = 22,072.44 : x
  2. Step 2: Convert to fraction form
    68,825.64/103,228.72 = 22,072.44/x
  3. Step 3: Cross multiply
    68,825.64x = 103,228.72 × 22,072.44
  4. Step 4: Simplify right side
    68,825.64x = 2,278,509,728.48
  5. Step 5: Solve for x
    x = 2,278,509,728.48/68,825.64
  6. Step 6: Final answer
    x = 33,105.54

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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.