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Finding the Fourth Proportional to 68,118.17, 102,213.90 and 33,057.72

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Solution

The fourth proportional to 68,118.17, 102,213.90 and 33,057.72 is: 49,604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,118.17 : 102,213.90 = 33,057.72 : x
  2. Step 2: Convert to fraction form
    68,118.17/102,213.90 = 33,057.72/x
  3. Step 3: Cross multiply
    68,118.17x = 102,213.90 × 33,057.72
  4. Step 4: Simplify right side
    68,118.17x = 3,378,958,486.31
  5. Step 5: Solve for x
    x = 3,378,958,486.31/68,118.17
  6. Step 6: Final answer
    x = 49,604.37

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1.5x scale

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.