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Finding the Fourth Proportional to 111,241.29, 166,667.54 and 92,640.99

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Solution

The fourth proportional to 111,241.29, 166,667.54 and 92,640.99 is: 138,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,241.29 : 166,667.54 = 92,640.99 : x
  2. Step 2: Convert to fraction form
    111,241.29/166,667.54 = 92,640.99/x
  3. Step 3: Cross multiply
    111,241.29x = 166,667.54 × 92,640.99
  4. Step 4: Simplify right side
    111,241.29x = 15,440,245,443.26
  5. Step 5: Solve for x
    x = 15,440,245,443.26/111,241.29
  6. Step 6: Final answer
    x = 138,799.59

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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.