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Finding the Fourth Proportional to 111,269, 166,929.75 and 36,388.85

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Solution

The fourth proportional to 111,269, 166,929.75 and 36,388.85 is: 54,591.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,269 : 166,929.75 = 36,388.85 : x
  2. Step 2: Convert to fraction form
    111,269/166,929.75 = 36,388.85/x
  3. Step 3: Cross multiply
    111,269x = 166,929.75 × 36,388.85
  4. Step 4: Simplify right side
    111,269x = 6,074,381,633.29
  5. Step 5: Solve for x
    x = 6,074,381,633.29/111,269
  6. Step 6: Final answer
    x = 54,591.86

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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.