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Finding the Fourth Proportional to 168,731.80, 253,100.70 and 50,404.60

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Solution

The fourth proportional to 168,731.80, 253,100.70 and 50,404.60 is: 75,607.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,731.80 : 253,100.70 = 50,404.60 : x
  2. Step 2: Convert to fraction form
    168,731.80/253,100.70 = 50,404.60/x
  3. Step 3: Cross multiply
    168,731.80x = 253,100.70 × 50,404.60
  4. Step 4: Simplify right side
    168,731.80x = 12,757,439,543.22
  5. Step 5: Solve for x
    x = 12,757,439,543.22/168,731.80
  6. Step 6: Final answer
    x = 75,607.80

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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.