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Finding the Fourth Proportional to 168,657.64, 252,949.20 and 48,688.52

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Solution

The fourth proportional to 168,657.64, 252,949.20 and 48,688.52 is: 73,022.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,657.64 : 252,949.20 = 48,688.52 : x
  2. Step 2: Convert to fraction form
    168,657.64/252,949.20 = 48,688.52/x
  3. Step 3: Cross multiply
    168,657.64x = 252,949.20 × 48,688.52
  4. Step 4: Simplify right side
    168,657.64x = 12,315,722,183.18
  5. Step 5: Solve for x
    x = 12,315,722,183.18/168,657.64
  6. Step 6: Final answer
    x = 73,022.02

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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.