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Finding the Fourth Proportional to 90,241.92, 135,361.92 and 34,799.04

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Solution

The fourth proportional to 90,241.92, 135,361.92 and 34,799.04 is: 52,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,241.92 : 135,361.92 = 34,799.04 : x
  2. Step 2: Convert to fraction form
    90,241.92/135,361.92 = 34,799.04/x
  3. Step 3: Cross multiply
    90,241.92x = 135,361.92 × 34,799.04
  4. Step 4: Simplify right side
    90,241.92x = 4,710,464,868.56
  5. Step 5: Solve for x
    x = 4,710,464,868.56/90,241.92
  6. Step 6: Final answer
    x = 52,198.19

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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.