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Finding the Fourth Proportional to 111,717.17, 167,481.29 and 48,489.77

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Solution

The fourth proportional to 111,717.17, 167,481.29 and 48,489.77 is: 72,693.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,717.17 : 167,481.29 = 48,489.77 : x
  2. Step 2: Convert to fraction form
    111,717.17/167,481.29 = 48,489.77/x
  3. Step 3: Cross multiply
    111,717.17x = 167,481.29 × 48,489.77
  4. Step 4: Simplify right side
    111,717.17x = 8,121,129,771.33
  5. Step 5: Solve for x
    x = 8,121,129,771.33/111,717.17
  6. Step 6: Final answer
    x = 72,693.66

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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.