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Finding the Fourth Proportional to 111,281.70, 166,805.91 and 41,116.26

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Solution

The fourth proportional to 111,281.70, 166,805.91 and 41,116.26 is: 61,631.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,281.70 : 166,805.91 = 41,116.26 : x
  2. Step 2: Convert to fraction form
    111,281.70/166,805.91 = 41,116.26/x
  3. Step 3: Cross multiply
    111,281.70x = 166,805.91 × 41,116.26
  4. Step 4: Simplify right side
    111,281.70x = 6,858,435,736.30
  5. Step 5: Solve for x
    x = 6,858,435,736.30/111,281.70
  6. Step 6: Final answer
    x = 61,631.30

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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.