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Finding the Fourth Proportional to 68,843.53, 103,177.81 and 37,642.33

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Solution

The fourth proportional to 68,843.53, 103,177.81 and 37,642.33 is: 56,415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,843.53 : 103,177.81 = 37,642.33 : x
  2. Step 2: Convert to fraction form
    68,843.53/103,177.81 = 37,642.33/x
  3. Step 3: Cross multiply
    68,843.53x = 103,177.81 × 37,642.33
  4. Step 4: Simplify right side
    68,843.53x = 3,883,853,172.70
  5. Step 5: Solve for x
    x = 3,883,853,172.70/68,843.53
  6. Step 6: Final answer
    x = 56,415.66

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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.