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Finding the Fourth Proportional to 200,739.99, 300,847.50 and 82,272.63

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Solution

The fourth proportional to 200,739.99, 300,847.50 and 82,272.63 is: 123,301.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,739.99 : 300,847.50 = 82,272.63 : x
  2. Step 2: Convert to fraction form
    200,739.99/300,847.50 = 82,272.63/x
  3. Step 3: Cross multiply
    200,739.99x = 300,847.50 × 82,272.63
  4. Step 4: Simplify right side
    200,739.99x = 24,751,515,053.93
  5. Step 5: Solve for x
    x = 24,751,515,053.93/200,739.99
  6. Step 6: Final answer
    x = 123,301.37

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1.5x scale

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.