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Finding the Fourth Proportional to 111,103.70, 166,655.54 and 27,997.70

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Solution

The fourth proportional to 111,103.70, 166,655.54 and 27,997.70 is: 41,996.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,103.70 : 166,655.54 = 27,997.70 : x
  2. Step 2: Convert to fraction form
    111,103.70/166,655.54 = 27,997.70/x
  3. Step 3: Cross multiply
    111,103.70x = 166,655.54 × 27,997.70
  4. Step 4: Simplify right side
    111,103.70x = 4,665,970,838.99
  5. Step 5: Solve for x
    x = 4,665,970,838.99/111,103.70
  6. Step 6: Final answer
    x = 41,996.54

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Similar ratio
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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.