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Finding the Fourth Proportional to 168,790.68, 253,310.58 and 80,044.38

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Solution

The fourth proportional to 168,790.68, 253,310.58 and 80,044.38 is: 120,125.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,790.68 : 253,310.58 = 80,044.38 : x
  2. Step 2: Convert to fraction form
    168,790.68/253,310.58 = 80,044.38/x
  3. Step 3: Cross multiply
    168,790.68x = 253,310.58 × 80,044.38
  4. Step 4: Simplify right side
    168,790.68x = 20,276,088,323.54
  5. Step 5: Solve for x
    x = 20,276,088,323.54/168,790.68
  6. Step 6: Final answer
    x = 120,125.64

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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.