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Finding the Fourth Proportional to 111,881.04, 167,781.54 and 36,987.36

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Solution

The fourth proportional to 111,881.04, 167,781.54 and 36,987.36 is: 55,467.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,881.04 : 167,781.54 = 36,987.36 : x
  2. Step 2: Convert to fraction form
    111,881.04/167,781.54 = 36,987.36/x
  3. Step 3: Cross multiply
    111,881.04x = 167,781.54 × 36,987.36
  4. Step 4: Simplify right side
    111,881.04x = 6,205,796,221.33
  5. Step 5: Solve for x
    x = 6,205,796,221.33/111,881.04
  6. Step 6: Final answer
    x = 55,467.81

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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.