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Finding the Fourth Proportional to 168,739.80, 253,112.40 and 44,080.80

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Solution

The fourth proportional to 168,739.80, 253,112.40 and 44,080.80 is: 66,121.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,739.80 : 253,112.40 = 44,080.80 : x
  2. Step 2: Convert to fraction form
    168,739.80/253,112.40 = 44,080.80/x
  3. Step 3: Cross multiply
    168,739.80x = 253,112.40 × 44,080.80
  4. Step 4: Simplify right side
    168,739.80x = 11,157,397,081.92
  5. Step 5: Solve for x
    x = 11,157,397,081.92/168,739.80
  6. Step 6: Final answer
    x = 66,121.91

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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.