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Finding the Fourth Proportional to 91,073.37, 136,625.87 and 27,892

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Solution

The fourth proportional to 91,073.37, 136,625.87 and 27,892 is: 41,842.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,073.37 : 136,625.87 = 27,892 : x
  2. Step 2: Convert to fraction form
    91,073.37/136,625.87 = 27,892/x
  3. Step 3: Cross multiply
    91,073.37x = 136,625.87 × 27,892
  4. Step 4: Simplify right side
    91,073.37x = 3,810,768,766.04
  5. Step 5: Solve for x
    x = 3,810,768,766.04/91,073.37
  6. Step 6: Final answer
    x = 41,842.84

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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.