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Finding the Fourth Proportional to 111,881.01, 167,781.54 and 36,987.33

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Solution

The fourth proportional to 111,881.01, 167,781.54 and 36,987.33 is: 55,467.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,881.01 : 167,781.54 = 36,987.33 : x
  2. Step 2: Convert to fraction form
    111,881.01/167,781.54 = 36,987.33/x
  3. Step 3: Cross multiply
    111,881.01x = 167,781.54 × 36,987.33
  4. Step 4: Simplify right side
    111,881.01x = 6,205,791,187.89
  5. Step 5: Solve for x
    x = 6,205,791,187.89/111,881.01
  6. Step 6: Final answer
    x = 55,467.78

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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.