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Finding the Fourth Proportional to 111,267.72, 166,922.52 and 44,713.20

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Solution

The fourth proportional to 111,267.72, 166,922.52 and 44,713.20 is: 67,078.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,267.72 : 166,922.52 = 44,713.20 : x
  2. Step 2: Convert to fraction form
    111,267.72/166,922.52 = 44,713.20/x
  3. Step 3: Cross multiply
    111,267.72x = 166,922.52 × 44,713.20
  4. Step 4: Simplify right side
    111,267.72x = 7,463,640,021.26
  5. Step 5: Solve for x
    x = 7,463,640,021.26/111,267.72
  6. Step 6: Final answer
    x = 67,078.21

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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.