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Finding the Fourth Proportional to 248,832.80, 373,249.20 and 82,620.80

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Solution

The fourth proportional to 248,832.80, 373,249.20 and 82,620.80 is: 123,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,832.80 : 373,249.20 = 82,620.80 : x
  2. Step 2: Convert to fraction form
    248,832.80/373,249.20 = 82,620.80/x
  3. Step 3: Cross multiply
    248,832.80x = 373,249.20 × 82,620.80
  4. Step 4: Simplify right side
    248,832.80x = 30,838,147,503.36
  5. Step 5: Solve for x
    x = 30,838,147,503.36/248,832.80
  6. Step 6: Final answer
    x = 123,931.20

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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.