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Finding the Fourth Proportional to 84,167.89, 126,163.08 and 27,992.97

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Solution

The fourth proportional to 84,167.89, 126,163.08 and 27,992.97 is: 41,959.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,167.89 : 126,163.08 = 27,992.97 : x
  2. Step 2: Convert to fraction form
    84,167.89/126,163.08 = 27,992.97/x
  3. Step 3: Cross multiply
    84,167.89x = 126,163.08 × 27,992.97
  4. Step 4: Simplify right side
    84,167.89x = 3,531,679,313.55
  5. Step 5: Solve for x
    x = 3,531,679,313.55/84,167.89
  6. Step 6: Final answer
    x = 41,959.94

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1.5x scale

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.