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Finding the Fourth Proportional to 90,664.48, 136,023.88 and 36,601.32

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Solution

The fourth proportional to 90,664.48, 136,023.88 and 36,601.32 is: 54,912.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,664.48 : 136,023.88 = 36,601.32 : x
  2. Step 2: Convert to fraction form
    90,664.48/136,023.88 = 36,601.32/x
  3. Step 3: Cross multiply
    90,664.48x = 136,023.88 × 36,601.32
  4. Step 4: Simplify right side
    90,664.48x = 4,978,654,245.32
  5. Step 5: Solve for x
    x = 4,978,654,245.32/90,664.48
  6. Step 6: Final answer
    x = 54,912.95

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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.