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Finding the Fourth Proportional to 283,812.36, 425,720.22 and 84,134.43

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Solution

The fourth proportional to 283,812.36, 425,720.22 and 84,134.43 is: 126,202.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,812.36 : 425,720.22 = 84,134.43 : x
  2. Step 2: Convert to fraction form
    283,812.36/425,720.22 = 84,134.43/x
  3. Step 3: Cross multiply
    283,812.36x = 425,720.22 × 84,134.43
  4. Step 4: Simplify right side
    283,812.36x = 35,817,728,049.17
  5. Step 5: Solve for x
    x = 35,817,728,049.17/283,812.36
  6. Step 6: Final answer
    x = 126,202.14

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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.