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Finding the Fourth Proportional to 68,760.56, 103,236.65 and 35,504.62

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Solution

The fourth proportional to 68,760.56, 103,236.65 and 35,504.62 is: 53,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,760.56 : 103,236.65 = 35,504.62 : x
  2. Step 2: Convert to fraction form
    68,760.56/103,236.65 = 35,504.62/x
  3. Step 3: Cross multiply
    68,760.56x = 103,236.65 × 35,504.62
  4. Step 4: Simplify right side
    68,760.56x = 3,665,378,028.32
  5. Step 5: Solve for x
    x = 3,665,378,028.32/68,760.56
  6. Step 6: Final answer
    x = 53,306.40

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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.