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Finding the Fourth Proportional to 283,392.17, 425,144.31 and 80,990.09

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Solution

The fourth proportional to 283,392.17, 425,144.31 and 80,990.09 is: 121,501.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,392.17 : 425,144.31 = 80,990.09 : x
  2. Step 2: Convert to fraction form
    283,392.17/425,144.31 = 80,990.09/x
  3. Step 3: Cross multiply
    283,392.17x = 425,144.31 × 80,990.09
  4. Step 4: Simplify right side
    283,392.17x = 34,432,473,399.22
  5. Step 5: Solve for x
    x = 34,432,473,399.22/283,392.17
  6. Step 6: Final answer
    x = 121,501.15

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.