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Finding the Fourth Proportional to 168,768.79, 253,277.76 and 80,022.61

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Solution

The fourth proportional to 168,768.79, 253,277.76 and 80,022.61 is: 120,092.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,768.79 : 253,277.76 = 80,022.61 : x
  2. Step 2: Convert to fraction form
    168,768.79/253,277.76 = 80,022.61/x
  3. Step 3: Cross multiply
    168,768.79x = 253,277.76 × 80,022.61
  4. Step 4: Simplify right side
    168,768.79x = 20,267,947,410.15
  5. Step 5: Solve for x
    x = 20,267,947,410.15/168,768.79
  6. Step 6: Final answer
    x = 120,092.98

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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.