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Finding the Fourth Proportional to 327,246.48, 490,815.03 and 90,613.08

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Solution

The fourth proportional to 327,246.48, 490,815.03 and 90,613.08 is: 135,904.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,246.48 : 490,815.03 = 90,613.08 : x
  2. Step 2: Convert to fraction form
    327,246.48/490,815.03 = 90,613.08/x
  3. Step 3: Cross multiply
    327,246.48x = 490,815.03 × 90,613.08
  4. Step 4: Simplify right side
    327,246.48x = 44,474,261,578.59
  5. Step 5: Solve for x
    x = 44,474,261,578.59/327,246.48
  6. Step 6: Final answer
    x = 135,904.48

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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.