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Finding the Fourth Proportional to 68,388.56, 102,581.77 and 35,089.41

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Solution

The fourth proportional to 68,388.56, 102,581.77 and 35,089.41 is: 52,633.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,388.56 : 102,581.77 = 35,089.41 : x
  2. Step 2: Convert to fraction form
    68,388.56/102,581.77 = 35,089.41/x
  3. Step 3: Cross multiply
    68,388.56x = 102,581.77 × 35,089.41
  4. Step 4: Simplify right side
    68,388.56x = 3,599,533,786.06
  5. Step 5: Solve for x
    x = 3,599,533,786.06/68,388.56
  6. Step 6: Final answer
    x = 52,633.57

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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.