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Finding the Fourth Proportional to 83,958.60, 126,035.10 and 50,716.20

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Solution

The fourth proportional to 83,958.60, 126,035.10 and 50,716.20 is: 76,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,958.60 : 126,035.10 = 50,716.20 : x
  2. Step 2: Convert to fraction form
    83,958.60/126,035.10 = 50,716.20/x
  3. Step 3: Cross multiply
    83,958.60x = 126,035.10 × 50,716.20
  4. Step 4: Simplify right side
    83,958.60x = 6,392,021,338.62
  5. Step 5: Solve for x
    x = 6,392,021,338.62/83,958.60
  6. Step 6: Final answer
    x = 76,133.01

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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.