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Finding the Fourth Proportional to 168,102.68, 252,190.92 and 49,783.28

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Solution

The fourth proportional to 168,102.68, 252,190.92 and 49,783.28 is: 74,685.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,102.68 : 252,190.92 = 49,783.28 : x
  2. Step 2: Convert to fraction form
    168,102.68/252,190.92 = 49,783.28/x
  3. Step 3: Cross multiply
    168,102.68x = 252,190.92 × 49,783.28
  4. Step 4: Simplify right side
    168,102.68x = 12,554,891,183.82
  5. Step 5: Solve for x
    x = 12,554,891,183.82/168,102.68
  6. Step 6: Final answer
    x = 74,685.85

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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.