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Finding the Fourth Proportional to 104,880.70, 144,789.02 and 71,067.88

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Solution

The fourth proportional to 104,880.70, 144,789.02 and 71,067.88 is: 98,110.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,880.70 : 144,789.02 = 71,067.88 : x
  2. Step 2: Convert to fraction form
    104,880.70/144,789.02 = 71,067.88/x
  3. Step 3: Cross multiply
    104,880.70x = 144,789.02 × 71,067.88
  4. Step 4: Simplify right side
    104,880.70x = 10,289,848,698.68
  5. Step 5: Solve for x
    x = 10,289,848,698.68/104,880.70
  6. Step 6: Final answer
    x = 98,110.03

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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.