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Finding the Fourth Proportional to 351,617.31, 527,448.75 and 141,255.27

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Solution

The fourth proportional to 351,617.31, 527,448.75 and 141,255.27 is: 211,892.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,617.31 : 527,448.75 = 141,255.27 : x
  2. Step 2: Convert to fraction form
    351,617.31/527,448.75 = 141,255.27/x
  3. Step 3: Cross multiply
    351,617.31x = 527,448.75 × 141,255.27
  4. Step 4: Simplify right side
    351,617.31x = 74,504,915,592.41
  5. Step 5: Solve for x
    x = 74,504,915,592.41/351,617.31
  6. Step 6: Final answer
    x = 211,892.06

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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.