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Finding the Fourth Proportional to 327,363.01, 491,043.14 and 90,705

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Solution

The fourth proportional to 327,363.01, 491,043.14 and 90,705 is: 136,057.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,363.01 : 491,043.14 = 90,705 : x
  2. Step 2: Convert to fraction form
    327,363.01/491,043.14 = 90,705/x
  3. Step 3: Cross multiply
    327,363.01x = 491,043.14 × 90,705
  4. Step 4: Simplify right side
    327,363.01x = 44,540,068,013.70
  5. Step 5: Solve for x
    x = 44,540,068,013.70/327,363.01
  6. Step 6: Final answer
    x = 136,057.12

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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.