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Finding the Fourth Proportional to 68,011.85, 102,025.37 and 18,093.88

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Solution

The fourth proportional to 68,011.85, 102,025.37 and 18,093.88 is: 27,142.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,011.85 : 102,025.37 = 18,093.88 : x
  2. Step 2: Convert to fraction form
    68,011.85/102,025.37 = 18,093.88/x
  3. Step 3: Cross multiply
    68,011.85x = 102,025.37 × 18,093.88
  4. Step 4: Simplify right side
    68,011.85x = 1,846,034,974.50
  5. Step 5: Solve for x
    x = 1,846,034,974.50/68,011.85
  6. Step 6: Final answer
    x = 27,142.84

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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.