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Finding the Fourth Proportional to 90,490.08, 135,793.44 and 35,086.08

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Solution

The fourth proportional to 90,490.08, 135,793.44 and 35,086.08 is: 52,651.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,490.08 : 135,793.44 = 35,086.08 : x
  2. Step 2: Convert to fraction form
    90,490.08/135,793.44 = 35,086.08/x
  3. Step 3: Cross multiply
    90,490.08x = 135,793.44 × 35,086.08
  4. Step 4: Simplify right side
    90,490.08x = 4,764,459,499.32
  5. Step 5: Solve for x
    x = 4,764,459,499.32/90,490.08
  6. Step 6: Final answer
    x = 52,651.73

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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.