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Finding the Fourth Proportional to 168,735.80, 253,106.70 and 50,408.60

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Solution

The fourth proportional to 168,735.80, 253,106.70 and 50,408.60 is: 75,613.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,735.80 : 253,106.70 = 50,408.60 : x
  2. Step 2: Convert to fraction form
    168,735.80/253,106.70 = 50,408.60/x
  3. Step 3: Cross multiply
    168,735.80x = 253,106.70 × 50,408.60
  4. Step 4: Simplify right side
    168,735.80x = 12,758,754,397.62
  5. Step 5: Solve for x
    x = 12,758,754,397.62/168,735.80
  6. Step 6: Final answer
    x = 75,613.80

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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.