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Finding the Fourth Proportional to 111,690.66, 167,556.75 and 36,816.05

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Solution

The fourth proportional to 111,690.66, 167,556.75 and 36,816.05 is: 55,230.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,690.66 : 167,556.75 = 36,816.05 : x
  2. Step 2: Convert to fraction form
    111,690.66/167,556.75 = 36,816.05/x
  3. Step 3: Cross multiply
    111,690.66x = 167,556.75 × 36,816.05
  4. Step 4: Simplify right side
    111,690.66x = 6,168,776,663.97
  5. Step 5: Solve for x
    x = 6,168,776,663.97/111,690.66
  6. Step 6: Final answer
    x = 55,230.91

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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.