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Finding the Fourth Proportional to 68,270.52, 102,404.82 and 18,349.08

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Solution

The fourth proportional to 68,270.52, 102,404.82 and 18,349.08 is: 27,523.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,270.52 : 102,404.82 = 18,349.08 : x
  2. Step 2: Convert to fraction form
    68,270.52/102,404.82 = 18,349.08/x
  3. Step 3: Cross multiply
    68,270.52x = 102,404.82 × 18,349.08
  4. Step 4: Simplify right side
    68,270.52x = 1,879,034,234.57
  5. Step 5: Solve for x
    x = 1,879,034,234.57/68,270.52
  6. Step 6: Final answer
    x = 27,523.36

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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.