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Finding the Fourth Proportional to 141,667.93, 212,270.95 and 82,553.41

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Solution

The fourth proportional to 141,667.93, 212,270.95 and 82,553.41 is: 123,695.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,667.93 : 212,270.95 = 82,553.41 : x
  2. Step 2: Convert to fraction form
    141,667.93/212,270.95 = 82,553.41/x
  3. Step 3: Cross multiply
    141,667.93x = 212,270.95 × 82,553.41
  4. Step 4: Simplify right side
    141,667.93x = 17,523,690,766.44
  5. Step 5: Solve for x
    x = 17,523,690,766.44/141,667.93
  6. Step 6: Final answer
    x = 123,695.54

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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.