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Finding the Fourth Proportional to 143,995.26, 215,991.97 and 49,179.70

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Solution

The fourth proportional to 143,995.26, 215,991.97 and 49,179.70 is: 73,769.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,995.26 : 215,991.97 = 49,179.70 : x
  2. Step 2: Convert to fraction form
    143,995.26/215,991.97 = 49,179.70/x
  3. Step 3: Cross multiply
    143,995.26x = 215,991.97 × 49,179.70
  4. Step 4: Simplify right side
    143,995.26x = 10,622,420,287.01
  5. Step 5: Solve for x
    x = 10,622,420,287.01/143,995.26
  6. Step 6: Final answer
    x = 73,769.24

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1.5x scale

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.