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Finding the Fourth Proportional to 188,963.23, 260,769.24 and 104,080.29

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Solution

The fourth proportional to 188,963.23, 260,769.24 and 104,080.29 is: 143,630.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,963.23 : 260,769.24 = 104,080.29 : x
  2. Step 2: Convert to fraction form
    188,963.23/260,769.24 = 104,080.29/x
  3. Step 3: Cross multiply
    188,963.23x = 260,769.24 × 104,080.29
  4. Step 4: Simplify right side
    188,963.23x = 27,140,936,818.43
  5. Step 5: Solve for x
    x = 27,140,936,818.43/188,963.23
  6. Step 6: Final answer
    x = 143,630.79

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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.