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Finding the Fourth Proportional to 111,016.62, 166,579.60 and 51,843.70

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Solution

The fourth proportional to 111,016.62, 166,579.60 and 51,843.70 is: 77,791.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,016.62 : 166,579.60 = 51,843.70 : x
  2. Step 2: Convert to fraction form
    111,016.62/166,579.60 = 51,843.70/x
  3. Step 3: Cross multiply
    111,016.62x = 166,579.60 × 51,843.70
  4. Step 4: Simplify right side
    111,016.62x = 8,636,102,808.52
  5. Step 5: Solve for x
    x = 8,636,102,808.52/111,016.62
  6. Step 6: Final answer
    x = 77,791.08

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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.