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Finding the Fourth Proportional to 111,717.60, 167,481.99 and 48,489.90

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Solution

The fourth proportional to 111,717.60, 167,481.99 and 48,489.90 is: 72,693.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,717.60 : 167,481.99 = 48,489.90 : x
  2. Step 2: Convert to fraction form
    111,717.60/167,481.99 = 48,489.90/x
  3. Step 3: Cross multiply
    111,717.60x = 167,481.99 × 48,489.90
  4. Step 4: Simplify right side
    111,717.60x = 8,121,184,946.90
  5. Step 5: Solve for x
    x = 8,121,184,946.90/111,717.60
  6. Step 6: Final answer
    x = 72,693.87

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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.