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Finding the Fourth Proportional to 327,191.43, 490,798.08 and 90,514.29

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Solution

The fourth proportional to 327,191.43, 490,798.08 and 90,514.29 is: 135,774.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,191.43 : 490,798.08 = 90,514.29 : x
  2. Step 2: Convert to fraction form
    327,191.43/490,798.08 = 90,514.29/x
  3. Step 3: Cross multiply
    327,191.43x = 490,798.08 × 90,514.29
  4. Step 4: Simplify right side
    327,191.43x = 44,424,239,744.56
  5. Step 5: Solve for x
    x = 44,424,239,744.56/327,191.43
  6. Step 6: Final answer
    x = 135,774.46

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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.