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Finding the Fourth Proportional to 68,531.46, 102,651.48 and 32,940.51

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Solution

The fourth proportional to 68,531.46, 102,651.48 and 32,940.51 is: 49,340.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,531.46 : 102,651.48 = 32,940.51 : x
  2. Step 2: Convert to fraction form
    68,531.46/102,651.48 = 32,940.51/x
  3. Step 3: Cross multiply
    68,531.46x = 102,651.48 × 32,940.51
  4. Step 4: Simplify right side
    68,531.46x = 3,381,392,103.45
  5. Step 5: Solve for x
    x = 3,381,392,103.45/68,531.46
  6. Step 6: Final answer
    x = 49,340.73

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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.