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Finding the Fourth Proportional to 188,986.80, 283,480.20 and 169,633.20

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Solution

The fourth proportional to 188,986.80, 283,480.20 and 169,633.20 is: 254,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,986.80 : 283,480.20 = 169,633.20 : x
  2. Step 2: Convert to fraction form
    188,986.80/283,480.20 = 169,633.20/x
  3. Step 3: Cross multiply
    188,986.80x = 283,480.20 × 169,633.20
  4. Step 4: Simplify right side
    188,986.80x = 48,087,653,462.64
  5. Step 5: Solve for x
    x = 48,087,653,462.64/188,986.80
  6. Step 6: Final answer
    x = 254,449.80

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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.