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Finding the Fourth Proportional to 168,578.54, 252,992.60 and 79,832.24

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Solution

The fourth proportional to 168,578.54, 252,992.60 and 79,832.24 is: 119,807.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,578.54 : 252,992.60 = 79,832.24 : x
  2. Step 2: Convert to fraction form
    168,578.54/252,992.60 = 79,832.24/x
  3. Step 3: Cross multiply
    168,578.54x = 252,992.60 × 79,832.24
  4. Step 4: Simplify right side
    168,578.54x = 20,196,964,297.30
  5. Step 5: Solve for x
    x = 20,196,964,297.30/168,578.54
  6. Step 6: Final answer
    x = 119,807.45

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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.