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Finding the Fourth Proportional to 111,067.61, 166,603.37 and 36,187.47

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Solution

The fourth proportional to 111,067.61, 166,603.37 and 36,187.47 is: 54,281.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,067.61 : 166,603.37 = 36,187.47 : x
  2. Step 2: Convert to fraction form
    111,067.61/166,603.37 = 36,187.47/x
  3. Step 3: Cross multiply
    111,067.61x = 166,603.37 × 36,187.47
  4. Step 4: Simplify right side
    111,067.61x = 6,028,954,272.84
  5. Step 5: Solve for x
    x = 6,028,954,272.84/111,067.61
  6. Step 6: Final answer
    x = 54,281.84

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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.