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Finding the Fourth Proportional to 68,504.76, 102,787.92 and 43,538.34

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Solution

The fourth proportional to 68,504.76, 102,787.92 and 43,538.34 is: 65,327.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,504.76 : 102,787.92 = 43,538.34 : x
  2. Step 2: Convert to fraction form
    68,504.76/102,787.92 = 43,538.34/x
  3. Step 3: Cross multiply
    68,504.76x = 102,787.92 × 43,538.34
  4. Step 4: Simplify right side
    68,504.76x = 4,475,215,408.85
  5. Step 5: Solve for x
    x = 4,475,215,408.85/68,504.76
  6. Step 6: Final answer
    x = 65,327.07

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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.