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Finding the Fourth Proportional to 200,356.62, 300,687.27 and 74,116.26

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Solution

The fourth proportional to 200,356.62, 300,687.27 and 74,116.26 is: 111,230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,356.62 : 300,687.27 = 74,116.26 : x
  2. Step 2: Convert to fraction form
    200,356.62/300,687.27 = 74,116.26/x
  3. Step 3: Cross multiply
    200,356.62x = 300,687.27 × 74,116.26
  4. Step 4: Simplify right side
    200,356.62x = 22,285,815,882.01
  5. Step 5: Solve for x
    x = 22,285,815,882.01/200,356.62
  6. Step 6: Final answer
    x = 111,230.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.