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Finding the Fourth Proportional to 68,108.65, 102,187.58 and 34,844.38

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Solution

The fourth proportional to 68,108.65, 102,187.58 and 34,844.38 is: 52,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,108.65 : 102,187.58 = 34,844.38 : x
  2. Step 2: Convert to fraction form
    68,108.65/102,187.58 = 34,844.38/x
  3. Step 3: Cross multiply
    68,108.65x = 102,187.58 × 34,844.38
  4. Step 4: Simplify right side
    68,108.65x = 3,560,662,439.11
  5. Step 5: Solve for x
    x = 3,560,662,439.11/68,108.65
  6. Step 6: Final answer
    x = 52,279.15

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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.