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Finding the Fourth Proportional to 68,241.62, 102,361.22 and 28,799.08

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Solution

The fourth proportional to 68,241.62, 102,361.22 and 28,799.08 is: 43,198.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,241.62 : 102,361.22 = 28,799.08 : x
  2. Step 2: Convert to fraction form
    68,241.62/102,361.22 = 28,799.08/x
  3. Step 3: Cross multiply
    68,241.62x = 102,361.22 × 28,799.08
  4. Step 4: Simplify right side
    68,241.62x = 2,947,908,963.68
  5. Step 5: Solve for x
    x = 2,947,908,963.68/68,241.62
  6. Step 6: Final answer
    x = 43,198.11

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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.