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Finding the Fourth Proportional to 255,217.75, 382,797.44 and 68,243.83

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Solution

The fourth proportional to 255,217.75, 382,797.44 and 68,243.83 is: 102,357.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,217.75 : 382,797.44 = 68,243.83 : x
  2. Step 2: Convert to fraction form
    255,217.75/382,797.44 = 68,243.83/x
  3. Step 3: Cross multiply
    255,217.75x = 382,797.44 × 68,243.83
  4. Step 4: Simplify right side
    255,217.75x = 26,123,563,419.80
  5. Step 5: Solve for x
    x = 26,123,563,419.80/255,217.75
  6. Step 6: Final answer
    x = 102,357.94

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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.