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Finding the Fourth Proportional to 351,895.78, 527,843.81 and 127,251.26

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Solution

The fourth proportional to 351,895.78, 527,843.81 and 127,251.26 is: 190,876.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,895.78 : 527,843.81 = 127,251.26 : x
  2. Step 2: Convert to fraction form
    351,895.78/527,843.81 = 127,251.26/x
  3. Step 3: Cross multiply
    351,895.78x = 527,843.81 × 127,251.26
  4. Step 4: Simplify right side
    351,895.78x = 67,168,789,905.70
  5. Step 5: Solve for x
    x = 67,168,789,905.70/351,895.78
  6. Step 6: Final answer
    x = 190,876.94

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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.