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Finding the Fourth Proportional to 206,519.39, 309,654.45 and 92,646.44

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Solution

The fourth proportional to 206,519.39, 309,654.45 and 92,646.44 is: 138,913.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,519.39 : 309,654.45 = 92,646.44 : x
  2. Step 2: Convert to fraction form
    206,519.39/309,654.45 = 92,646.44/x
  3. Step 3: Cross multiply
    206,519.39x = 309,654.45 × 92,646.44
  4. Step 4: Simplify right side
    206,519.39x = 28,688,382,422.66
  5. Step 5: Solve for x
    x = 28,688,382,422.66/206,519.39
  6. Step 6: Final answer
    x = 138,913.75

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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.