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Finding the Fourth Proportional to 111,372.60, 166,933.41 and 55,252.94

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Solution

The fourth proportional to 111,372.60, 166,933.41 and 55,252.94 is: 82,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,372.60 : 166,933.41 = 55,252.94 : x
  2. Step 2: Convert to fraction form
    111,372.60/166,933.41 = 55,252.94/x
  3. Step 3: Cross multiply
    111,372.60x = 166,933.41 × 55,252.94
  4. Step 4: Simplify right side
    111,372.60x = 9,223,560,644.86
  5. Step 5: Solve for x
    x = 9,223,560,644.86/111,372.60
  6. Step 6: Final answer
    x = 82,817.14

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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.