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Finding the Fourth Proportional to 188,963.69, 260,769.17 and 104,081.36

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Solution

The fourth proportional to 188,963.69, 260,769.17 and 104,081.36 is: 143,631.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,963.69 : 260,769.17 = 104,081.36 : x
  2. Step 2: Convert to fraction form
    188,963.69/260,769.17 = 104,081.36/x
  3. Step 3: Cross multiply
    188,963.69x = 260,769.17 × 104,081.36
  4. Step 4: Simplify right side
    188,963.69x = 27,141,208,816.03
  5. Step 5: Solve for x
    x = 27,141,208,816.03/188,963.69
  6. Step 6: Final answer
    x = 143,631.88

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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.