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Finding the Fourth Proportional to 111,428.76, 167,192.34 and 44,998.64

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Solution

The fourth proportional to 111,428.76, 167,192.34 and 44,998.64 is: 67,517.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,428.76 : 167,192.34 = 44,998.64 : x
  2. Step 2: Convert to fraction form
    111,428.76/167,192.34 = 44,998.64/x
  3. Step 3: Cross multiply
    111,428.76x = 167,192.34 × 44,998.64
  4. Step 4: Simplify right side
    111,428.76x = 7,523,427,540.68
  5. Step 5: Solve for x
    x = 7,523,427,540.68/111,428.76
  6. Step 6: Final answer
    x = 67,517.82

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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.