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Finding the Fourth Proportional to 218,349.28, 327,604.04 and 92,021.32

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Solution

The fourth proportional to 218,349.28, 327,604.04 and 92,021.32 is: 138,065.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,349.28 : 327,604.04 = 92,021.32 : x
  2. Step 2: Convert to fraction form
    218,349.28/327,604.04 = 92,021.32/x
  3. Step 3: Cross multiply
    218,349.28x = 327,604.04 × 92,021.32
  4. Step 4: Simplify right side
    218,349.28x = 30,146,556,198.13
  5. Step 5: Solve for x
    x = 30,146,556,198.13/218,349.28
  6. Step 6: Final answer
    x = 138,065.75

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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.