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Finding the Fourth Proportional to 168,608.64, 252,694.92 and 126,155.64

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Solution

The fourth proportional to 168,608.64, 252,694.92 and 126,155.64 is: 189,070.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,608.64 : 252,694.92 = 126,155.64 : x
  2. Step 2: Convert to fraction form
    168,608.64/252,694.92 = 126,155.64/x
  3. Step 3: Cross multiply
    168,608.64x = 252,694.92 × 126,155.64
  4. Step 4: Simplify right side
    168,608.64x = 31,878,889,357.35
  5. Step 5: Solve for x
    x = 31,878,889,357.35/168,608.64
  6. Step 6: Final answer
    x = 189,070.32

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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.