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Finding the Fourth Proportional to 283,394.17, 425,147.31 and 80,992.09

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Solution

The fourth proportional to 283,394.17, 425,147.31 and 80,992.09 is: 121,504.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,394.17 : 425,147.31 = 80,992.09 : x
  2. Step 2: Convert to fraction form
    283,394.17/425,147.31 = 80,992.09/x
  3. Step 3: Cross multiply
    283,394.17x = 425,147.31 × 80,992.09
  4. Step 4: Simplify right side
    283,394.17x = 34,433,569,194.78
  5. Step 5: Solve for x
    x = 34,433,569,194.78/283,394.17
  6. Step 6: Final answer
    x = 121,504.16

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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.