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Finding the Fourth Proportional to 103,992.67, 155,989.01 and 33,871.98

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Solution

The fourth proportional to 103,992.67, 155,989.01 and 33,871.98 is: 50,807.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,992.67 : 155,989.01 = 33,871.98 : x
  2. Step 2: Convert to fraction form
    103,992.67/155,989.01 = 33,871.98/x
  3. Step 3: Cross multiply
    103,992.67x = 155,989.01 × 33,871.98
  4. Step 4: Simplify right side
    103,992.67x = 5,283,656,626.94
  5. Step 5: Solve for x
    x = 5,283,656,626.94/103,992.67
  6. Step 6: Final answer
    x = 50,807.97

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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.