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Finding the Fourth Proportional to 144,641.33, 199,625.97 and 80,983.22

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Solution

The fourth proportional to 144,641.33, 199,625.97 and 80,983.22 is: 111,768.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,641.33 : 199,625.97 = 80,983.22 : x
  2. Step 2: Convert to fraction form
    144,641.33/199,625.97 = 80,983.22/x
  3. Step 3: Cross multiply
    144,641.33x = 199,625.97 × 80,983.22
  4. Step 4: Simplify right side
    144,641.33x = 16,166,352,848.09
  5. Step 5: Solve for x
    x = 16,166,352,848.09/144,641.33
  6. Step 6: Final answer
    x = 111,768.56

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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.