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Finding the Fourth Proportional to 327,887.21, 491,848.26 and 103,265.21

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Solution

The fourth proportional to 327,887.21, 491,848.26 and 103,265.21 is: 154,903.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,887.21 : 491,848.26 = 103,265.21 : x
  2. Step 2: Convert to fraction form
    327,887.21/491,848.26 = 103,265.21/x
  3. Step 3: Cross multiply
    327,887.21x = 491,848.26 × 103,265.21
  4. Step 4: Simplify right side
    327,887.21x = 50,790,813,340.71
  5. Step 5: Solve for x
    x = 50,790,813,340.71/327,887.21
  6. Step 6: Final answer
    x = 154,903.31

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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.