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Finding the Fourth Proportional to 68,404.80, 102,670.28 and 34,694.48

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Solution

The fourth proportional to 68,404.80, 102,670.28 and 34,694.48 is: 52,073.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,404.80 : 102,670.28 = 34,694.48 : x
  2. Step 2: Convert to fraction form
    68,404.80/102,670.28 = 34,694.48/x
  3. Step 3: Cross multiply
    68,404.80x = 102,670.28 × 34,694.48
  4. Step 4: Simplify right side
    68,404.80x = 3,562,091,932.69
  5. Step 5: Solve for x
    x = 3,562,091,932.69/68,404.80
  6. Step 6: Final answer
    x = 52,073.71

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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.