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Finding the Fourth Proportional to 68,273.28, 102,389.87 and 23,891.76

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Solution

The fourth proportional to 68,273.28, 102,389.87 and 23,891.76 is: 35,830.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,273.28 : 102,389.87 = 23,891.76 : x
  2. Step 2: Convert to fraction form
    68,273.28/102,389.87 = 23,891.76/x
  3. Step 3: Cross multiply
    68,273.28x = 102,389.87 × 23,891.76
  4. Step 4: Simplify right side
    68,273.28x = 2,446,274,260.20
  5. Step 5: Solve for x
    x = 2,446,274,260.20/68,273.28
  6. Step 6: Final answer
    x = 35,830.62

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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.