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Finding the Fourth Proportional to 111,881.51, 167,782.29 and 36,987.83

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Solution

The fourth proportional to 111,881.51, 167,782.29 and 36,987.83 is: 55,468.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,881.51 : 167,782.29 = 36,987.83 : x
  2. Step 2: Convert to fraction form
    111,881.51/167,782.29 = 36,987.83/x
  3. Step 3: Cross multiply
    111,881.51x = 167,782.29 × 36,987.83
  4. Step 4: Simplify right side
    111,881.51x = 6,205,902,819.53
  5. Step 5: Solve for x
    x = 6,205,902,819.53/111,881.51
  6. Step 6: Final answer
    x = 55,468.53

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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.