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Finding the Fourth Proportional to 218,354.88, 327,513.50 and 132,943.60

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Solution

The fourth proportional to 218,354.88, 327,513.50 and 132,943.60 is: 199,403.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,354.88 : 327,513.50 = 132,943.60 : x
  2. Step 2: Convert to fraction form
    218,354.88/327,513.50 = 132,943.60/x
  3. Step 3: Cross multiply
    218,354.88x = 327,513.50 × 132,943.60
  4. Step 4: Simplify right side
    218,354.88x = 43,540,823,738.60
  5. Step 5: Solve for x
    x = 43,540,823,738.60/218,354.88
  6. Step 6: Final answer
    x = 199,403.94

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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.