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Finding the Fourth Proportional to 111,979.89, 167,987.66 and 37,102.68

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Solution

The fourth proportional to 111,979.89, 167,987.66 and 37,102.68 is: 55,659.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,979.89 : 167,987.66 = 37,102.68 : x
  2. Step 2: Convert to fraction form
    111,979.89/167,987.66 = 37,102.68/x
  3. Step 3: Cross multiply
    111,979.89x = 167,987.66 × 37,102.68
  4. Step 4: Simplify right side
    111,979.89x = 6,232,792,207.42
  5. Step 5: Solve for x
    x = 6,232,792,207.42/111,979.89
  6. Step 6: Final answer
    x = 55,659.92

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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.