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Finding the Fourth Proportional to 68,287.25, 102,460.43 and 36,660.41

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Solution

The fourth proportional to 68,287.25, 102,460.43 and 36,660.41 is: 55,006.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,287.25 : 102,460.43 = 36,660.41 : x
  2. Step 2: Convert to fraction form
    68,287.25/102,460.43 = 36,660.41/x
  3. Step 3: Cross multiply
    68,287.25x = 102,460.43 × 36,660.41
  4. Step 4: Simplify right side
    68,287.25x = 3,756,241,189.27
  5. Step 5: Solve for x
    x = 3,756,241,189.27/68,287.25
  6. Step 6: Final answer
    x = 55,006.48

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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.