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Finding the Fourth Proportional to 168,803.80, 253,234.05 and 50,487.10

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Solution

The fourth proportional to 168,803.80, 253,234.05 and 50,487.10 is: 75,739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,803.80 : 253,234.05 = 50,487.10 : x
  2. Step 2: Convert to fraction form
    168,803.80/253,234.05 = 50,487.10/x
  3. Step 3: Cross multiply
    168,803.80x = 253,234.05 × 50,487.10
  4. Step 4: Simplify right side
    168,803.80x = 12,785,052,805.76
  5. Step 5: Solve for x
    x = 12,785,052,805.76/168,803.80
  6. Step 6: Final answer
    x = 75,739.13

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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.