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Finding the Fourth Proportional to 111,314.70, 166,972.05 and 44,720.55

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Solution

The fourth proportional to 111,314.70, 166,972.05 and 44,720.55 is: 67,080.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,314.70 : 166,972.05 = 44,720.55 : x
  2. Step 2: Convert to fraction form
    111,314.70/166,972.05 = 44,720.55/x
  3. Step 3: Cross multiply
    111,314.70x = 166,972.05 × 44,720.55
  4. Step 4: Simplify right side
    111,314.70x = 7,467,081,910.63
  5. Step 5: Solve for x
    x = 7,467,081,910.63/111,314.70
  6. Step 6: Final answer
    x = 67,080.83

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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.