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Finding the Fourth Proportional to 68,061.69, 101,952.09 and 39,896.21

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Solution

The fourth proportional to 68,061.69, 101,952.09 and 39,896.21 is: 59,761.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,061.69 : 101,952.09 = 39,896.21 : x
  2. Step 2: Convert to fraction form
    68,061.69/101,952.09 = 39,896.21/x
  3. Step 3: Cross multiply
    68,061.69x = 101,952.09 × 39,896.21
  4. Step 4: Simplify right side
    68,061.69x = 4,067,502,247.46
  5. Step 5: Solve for x
    x = 4,067,502,247.46/68,061.69
  6. Step 6: Final answer
    x = 59,761.99

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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.