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Finding the Fourth Proportional to 111,262.85, 166,844.37 and 66,305.42

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Solution

The fourth proportional to 111,262.85, 166,844.37 and 66,305.42 is: 99,428.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,262.85 : 166,844.37 = 66,305.42 : x
  2. Step 2: Convert to fraction form
    111,262.85/166,844.37 = 66,305.42/x
  3. Step 3: Cross multiply
    111,262.85x = 166,844.37 × 66,305.42
  4. Step 4: Simplify right side
    111,262.85x = 11,062,686,027.49
  5. Step 5: Solve for x
    x = 11,062,686,027.49/111,262.85
  6. Step 6: Final answer
    x = 99,428.39

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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.