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Finding the Fourth Proportional to 110,862, 166,294.44 and 36,990

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Solution

The fourth proportional to 110,862, 166,294.44 and 36,990 is: 55,485.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,862 : 166,294.44 = 36,990 : x
  2. Step 2: Convert to fraction form
    110,862/166,294.44 = 36,990/x
  3. Step 3: Cross multiply
    110,862x = 166,294.44 × 36,990
  4. Step 4: Simplify right side
    110,862x = 6,151,231,335.60
  5. Step 5: Solve for x
    x = 6,151,231,335.60/110,862
  6. Step 6: Final answer
    x = 55,485.48

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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.