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Finding the Fourth Proportional to 73,134, 109,735.78 and 50,679.24

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Solution

The fourth proportional to 73,134, 109,735.78 and 50,679.24 is: 76,042.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,134 : 109,735.78 = 50,679.24 : x
  2. Step 2: Convert to fraction form
    73,134/109,735.78 = 50,679.24/x
  3. Step 3: Cross multiply
    73,134x = 109,735.78 × 50,679.24
  4. Step 4: Simplify right side
    73,134x = 5,561,325,931.21
  5. Step 5: Solve for x
    x = 5,561,325,931.21/73,134
  6. Step 6: Final answer
    x = 76,042.96

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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.