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Finding the Fourth Proportional to 144,605.82, 199,560.16 and 80,943.86

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Solution

The fourth proportional to 144,605.82, 199,560.16 and 80,943.86 is: 111,704.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,605.82 : 199,560.16 = 80,943.86 : x
  2. Step 2: Convert to fraction form
    144,605.82/199,560.16 = 80,943.86/x
  3. Step 3: Cross multiply
    144,605.82x = 199,560.16 × 80,943.86
  4. Step 4: Simplify right side
    144,605.82x = 16,153,169,652.62
  5. Step 5: Solve for x
    x = 16,153,169,652.62/144,605.82
  6. Step 6: Final answer
    x = 111,704.84

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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.