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Finding the Fourth Proportional to 144,471.72, 199,360.16 and 80,797.22

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Solution

The fourth proportional to 144,471.72, 199,360.16 and 80,797.22 is: 111,494.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,471.72 : 199,360.16 = 80,797.22 : x
  2. Step 2: Convert to fraction form
    144,471.72/199,360.16 = 80,797.22/x
  3. Step 3: Cross multiply
    144,471.72x = 199,360.16 × 80,797.22
  4. Step 4: Simplify right side
    144,471.72x = 16,107,745,305.97
  5. Step 5: Solve for x
    x = 16,107,745,305.97/144,471.72
  6. Step 6: Final answer
    x = 111,494.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.