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Finding the Fourth Proportional to 144,489.52, 199,406.04 and 80,847.82

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Solution

The fourth proportional to 144,489.52, 199,406.04 and 80,847.82 is: 111,575.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,489.52 : 199,406.04 = 80,847.82 : x
  2. Step 2: Convert to fraction form
    144,489.52/199,406.04 = 80,847.82/x
  3. Step 3: Cross multiply
    144,489.52x = 199,406.04 × 80,847.82
  4. Step 4: Simplify right side
    144,489.52x = 16,121,543,628.83
  5. Step 5: Solve for x
    x = 16,121,543,628.83/144,489.52
  6. Step 6: Final answer
    x = 111,575.87

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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.