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Finding the Fourth Proportional to 168,516.63, 252,780.12 and 73,698.03

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Solution

The fourth proportional to 168,516.63, 252,780.12 and 73,698.03 is: 110,549.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,516.63 : 252,780.12 = 73,698.03 : x
  2. Step 2: Convert to fraction form
    168,516.63/252,780.12 = 73,698.03/x
  3. Step 3: Cross multiply
    168,516.63x = 252,780.12 × 73,698.03
  4. Step 4: Simplify right side
    168,516.63x = 18,629,396,867.16
  5. Step 5: Solve for x
    x = 18,629,396,867.16/168,516.63
  6. Step 6: Final answer
    x = 110,549.31

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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.