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Finding the Fourth Proportional to 111,270.98, 166,932.73 and 36,390.84

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Solution

The fourth proportional to 111,270.98, 166,932.73 and 36,390.84 is: 54,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,270.98 : 166,932.73 = 36,390.84 : x
  2. Step 2: Convert to fraction form
    111,270.98/166,932.73 = 36,390.84/x
  3. Step 3: Cross multiply
    111,270.98x = 166,932.73 × 36,390.84
  4. Step 4: Simplify right side
    111,270.98x = 6,074,822,268.19
  5. Step 5: Solve for x
    x = 6,074,822,268.19/111,270.98
  6. Step 6: Final answer
    x = 54,594.85

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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.