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Finding the Fourth Proportional to 111,297.68, 166,872.39 and 57,858.33

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Solution

The fourth proportional to 111,297.68, 166,872.39 and 57,858.33 is: 86,748.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,297.68 : 166,872.39 = 57,858.33 : x
  2. Step 2: Convert to fraction form
    111,297.68/166,872.39 = 57,858.33/x
  3. Step 3: Cross multiply
    111,297.68x = 166,872.39 × 57,858.33
  4. Step 4: Simplify right side
    111,297.68x = 9,654,958,217.31
  5. Step 5: Solve for x
    x = 9,654,958,217.31/111,297.68
  6. Step 6: Final answer
    x = 86,748.96

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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.