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Finding the Fourth Proportional to 283,553.20, 425,329.80 and 266,057.20

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Solution

The fourth proportional to 283,553.20, 425,329.80 and 266,057.20 is: 399,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,553.20 : 425,329.80 = 266,057.20 : x
  2. Step 2: Convert to fraction form
    283,553.20/425,329.80 = 266,057.20/x
  3. Step 3: Cross multiply
    283,553.20x = 425,329.80 × 266,057.20
  4. Step 4: Simplify right side
    283,553.20x = 113,162,055,664.56
  5. Step 5: Solve for x
    x = 113,162,055,664.56/283,553.20
  6. Step 6: Final answer
    x = 399,085.80

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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.