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Finding the Fourth Proportional to 251,270.53, 376,943.15 and 82,759.75

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Solution

The fourth proportional to 251,270.53, 376,943.15 and 82,759.75 is: 124,151.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,270.53 : 376,943.15 = 82,759.75 : x
  2. Step 2: Convert to fraction form
    251,270.53/376,943.15 = 82,759.75/x
  3. Step 3: Cross multiply
    251,270.53x = 376,943.15 × 82,759.75
  4. Step 4: Simplify right side
    251,270.53x = 31,195,720,858.21
  5. Step 5: Solve for x
    x = 31,195,720,858.21/251,270.53
  6. Step 6: Final answer
    x = 124,151.93

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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.