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Finding the Fourth Proportional to 168,871.76, 253,338.33 and 80,124.44

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Solution

The fourth proportional to 168,871.76, 253,338.33 and 80,124.44 is: 120,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,871.76 : 253,338.33 = 80,124.44 : x
  2. Step 2: Convert to fraction form
    168,871.76/253,338.33 = 80,124.44/x
  3. Step 3: Cross multiply
    168,871.76x = 253,338.33 × 80,124.44
  4. Step 4: Simplify right side
    168,871.76x = 20,298,590,154.47
  5. Step 5: Solve for x
    x = 20,298,590,154.47/168,871.76
  6. Step 6: Final answer
    x = 120,201.22

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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.