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Finding the Fourth Proportional to 344,891.78, 517,469.34 and 134,546.12

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Solution

The fourth proportional to 344,891.78, 517,469.34 and 134,546.12 is: 201,870.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,891.78 : 517,469.34 = 134,546.12 : x
  2. Step 2: Convert to fraction form
    344,891.78/517,469.34 = 134,546.12/x
  3. Step 3: Cross multiply
    344,891.78x = 517,469.34 × 134,546.12
  4. Step 4: Simplify right side
    344,891.78x = 69,623,491,773.67
  5. Step 5: Solve for x
    x = 69,623,491,773.67/344,891.78
  6. Step 6: Final answer
    x = 201,870.55

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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.