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Finding the Fourth Proportional to 283,694.76, 425,543.51 and 84,018.94

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Solution

The fourth proportional to 283,694.76, 425,543.51 and 84,018.94 is: 126,028.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,694.76 : 425,543.51 = 84,018.94 : x
  2. Step 2: Convert to fraction form
    283,694.76/425,543.51 = 84,018.94/x
  3. Step 3: Cross multiply
    283,694.76x = 425,543.51 × 84,018.94
  4. Step 4: Simplify right side
    283,694.76x = 35,753,713,780.27
  5. Step 5: Solve for x
    x = 35,753,713,780.27/283,694.76
  6. Step 6: Final answer
    x = 126,028.81

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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.