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Finding the Fourth Proportional to 144,469.79, 199,357.46 and 80,795.28

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Solution

The fourth proportional to 144,469.79, 199,357.46 and 80,795.28 is: 111,491.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,469.79 : 199,357.46 = 80,795.28 : x
  2. Step 2: Convert to fraction form
    144,469.79/199,357.46 = 80,795.28/x
  3. Step 3: Cross multiply
    144,469.79x = 199,357.46 × 80,795.28
  4. Step 4: Simplify right side
    144,469.79x = 16,107,141,800.79
  5. Step 5: Solve for x
    x = 16,107,141,800.79/144,469.79
  6. Step 6: Final answer
    x = 111,491.42

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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.