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Finding the Fourth Proportional to 111,105.25, 166,657.88 and 27,999.25

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Solution

The fourth proportional to 111,105.25, 166,657.88 and 27,999.25 is: 41,998.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,105.25 : 166,657.88 = 27,999.25 : x
  2. Step 2: Convert to fraction form
    111,105.25/166,657.88 = 27,999.25/x
  3. Step 3: Cross multiply
    111,105.25x = 166,657.88 × 27,999.25
  4. Step 4: Simplify right side
    111,105.25x = 4,666,295,646.59
  5. Step 5: Solve for x
    x = 4,666,295,646.59/111,105.25
  6. Step 6: Final answer
    x = 41,998.88

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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.