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Finding the Fourth Proportional to 111,989.70, 167,984.55 and 33,104.70

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Solution

The fourth proportional to 111,989.70, 167,984.55 and 33,104.70 is: 49,657.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,989.70 : 167,984.55 = 33,104.70 : x
  2. Step 2: Convert to fraction form
    111,989.70/167,984.55 = 33,104.70/x
  3. Step 3: Cross multiply
    111,989.70x = 167,984.55 × 33,104.70
  4. Step 4: Simplify right side
    111,989.70x = 5,561,078,132.39
  5. Step 5: Solve for x
    x = 5,561,078,132.39/111,989.70
  6. Step 6: Final answer
    x = 49,657.05

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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.