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Finding the Fourth Proportional to 68,141.12, 102,203.04 and 50,636.48

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Solution

The fourth proportional to 68,141.12, 102,203.04 and 50,636.48 is: 75,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,141.12 : 102,203.04 = 50,636.48 : x
  2. Step 2: Convert to fraction form
    68,141.12/102,203.04 = 50,636.48/x
  3. Step 3: Cross multiply
    68,141.12x = 102,203.04 × 50,636.48
  4. Step 4: Simplify right side
    68,141.12x = 5,175,202,190.90
  5. Step 5: Solve for x
    x = 5,175,202,190.90/68,141.12
  6. Step 6: Final answer
    x = 75,948.30

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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.