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Finding the Fourth Proportional to 68,772.62, 103,188.10 and 37,571.42

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Solution

The fourth proportional to 68,772.62, 103,188.10 and 37,571.42 is: 56,373.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,772.62 : 103,188.10 = 37,571.42 : x
  2. Step 2: Convert to fraction form
    68,772.62/103,188.10 = 37,571.42/x
  3. Step 3: Cross multiply
    68,772.62x = 103,188.10 × 37,571.42
  4. Step 4: Simplify right side
    68,772.62x = 3,876,923,444.10
  5. Step 5: Solve for x
    x = 3,876,923,444.10/68,772.62
  6. Step 6: Final answer
    x = 56,373.07

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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.