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Finding the Fourth Proportional to 144,453.68, 199,355.30 and 80,791.96

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Solution

The fourth proportional to 144,453.68, 199,355.30 and 80,791.96 is: 111,498.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,453.68 : 199,355.30 = 80,791.96 : x
  2. Step 2: Convert to fraction form
    144,453.68/199,355.30 = 80,791.96/x
  3. Step 3: Cross multiply
    144,453.68x = 199,355.30 × 80,791.96
  4. Step 4: Simplify right side
    144,453.68x = 16,106,305,423.39
  5. Step 5: Solve for x
    x = 16,106,305,423.39/144,453.68
  6. Step 6: Final answer
    x = 111,498.06

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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.