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Finding the Fourth Proportional to 101,081.28, 151,603.68 and 27,192

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Solution

The fourth proportional to 101,081.28, 151,603.68 and 27,192 is: 40,783.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,081.28 : 151,603.68 = 27,192 : x
  2. Step 2: Convert to fraction form
    101,081.28/151,603.68 = 27,192/x
  3. Step 3: Cross multiply
    101,081.28x = 151,603.68 × 27,192
  4. Step 4: Simplify right side
    101,081.28x = 4,122,407,266.56
  5. Step 5: Solve for x
    x = 4,122,407,266.56/101,081.28
  6. Step 6: Final answer
    x = 40,783.09

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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.