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Finding the Fourth Proportional to 238,568.87, 329,115.31 and 211,372.69

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Solution

The fourth proportional to 238,568.87, 329,115.31 and 211,372.69 is: 291,597.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,568.87 : 329,115.31 = 211,372.69 : x
  2. Step 2: Convert to fraction form
    238,568.87/329,115.31 = 211,372.69/x
  3. Step 3: Cross multiply
    238,568.87x = 329,115.31 × 211,372.69
  4. Step 4: Simplify right side
    238,568.87x = 69,565,987,043.66
  5. Step 5: Solve for x
    x = 69,565,987,043.66/238,568.87
  6. Step 6: Final answer
    x = 291,597.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.