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Finding the Fourth Proportional to 111,104.50, 166,656.75 and 27,998.50

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Solution

The fourth proportional to 111,104.50, 166,656.75 and 27,998.50 is: 41,997.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,104.50 : 166,656.75 = 27,998.50 : x
  2. Step 2: Convert to fraction form
    111,104.50/166,656.75 = 27,998.50/x
  3. Step 3: Cross multiply
    111,104.50x = 166,656.75 × 27,998.50
  4. Step 4: Simplify right side
    111,104.50x = 4,666,139,014.88
  5. Step 5: Solve for x
    x = 4,666,139,014.88/111,104.50
  6. Step 6: Final answer
    x = 41,997.75

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Double scale
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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.