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Finding the Fourth Proportional to 327,152.79, 490,691.16 and 90,513.90

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Solution

The fourth proportional to 327,152.79, 490,691.16 and 90,513.90 is: 135,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,152.79 : 490,691.16 = 90,513.90 : x
  2. Step 2: Convert to fraction form
    327,152.79/490,691.16 = 90,513.90/x
  3. Step 3: Cross multiply
    327,152.79x = 490,691.16 × 90,513.90
  4. Step 4: Simplify right side
    327,152.79x = 44,414,370,587.12
  5. Step 5: Solve for x
    x = 44,414,370,587.12/327,152.79
  6. Step 6: Final answer
    x = 135,760.33

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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.