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Finding the Fourth Proportional to 167,980.75, 251,976.03 and 43,321.75

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Solution

The fourth proportional to 167,980.75, 251,976.03 and 43,321.75 is: 64,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,980.75 : 251,976.03 = 43,321.75 : x
  2. Step 2: Convert to fraction form
    167,980.75/251,976.03 = 43,321.75/x
  3. Step 3: Cross multiply
    167,980.75x = 251,976.03 × 43,321.75
  4. Step 4: Simplify right side
    167,980.75x = 10,916,042,577.65
  5. Step 5: Solve for x
    x = 10,916,042,577.65/167,980.75
  6. Step 6: Final answer
    x = 64,983.89

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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.