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Finding the Fourth Proportional to 68,066.14, 102,119.99 and 34,809.56

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Solution

The fourth proportional to 68,066.14, 102,119.99 and 34,809.56 is: 52,224.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,066.14 : 102,119.99 = 34,809.56 : x
  2. Step 2: Convert to fraction form
    68,066.14/102,119.99 = 34,809.56/x
  3. Step 3: Cross multiply
    68,066.14x = 102,119.99 × 34,809.56
  4. Step 4: Simplify right side
    68,066.14x = 3,554,751,919.10
  5. Step 5: Solve for x
    x = 3,554,751,919.10/68,066.14
  6. Step 6: Final answer
    x = 52,224.97

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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.