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Finding the Fourth Proportional to 168,698.67, 253,052.55 and 73,880.07

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Solution

The fourth proportional to 168,698.67, 253,052.55 and 73,880.07 is: 110,822.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,698.67 : 253,052.55 = 73,880.07 : x
  2. Step 2: Convert to fraction form
    168,698.67/253,052.55 = 73,880.07/x
  3. Step 3: Cross multiply
    168,698.67x = 253,052.55 × 73,880.07
  4. Step 4: Simplify right side
    168,698.67x = 18,695,540,107.68
  5. Step 5: Solve for x
    x = 18,695,540,107.68/168,698.67
  6. Step 6: Final answer
    x = 110,822.10

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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.