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Finding the Fourth Proportional to 111,089.80, 166,634.58 and 36,209.92

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Solution

The fourth proportional to 111,089.80, 166,634.58 and 36,209.92 is: 54,314.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,089.80 : 166,634.58 = 36,209.92 : x
  2. Step 2: Convert to fraction form
    111,089.80/166,634.58 = 36,209.92/x
  3. Step 3: Cross multiply
    111,089.80x = 166,634.58 × 36,209.92
  4. Step 4: Simplify right side
    111,089.80x = 6,033,824,811.03
  5. Step 5: Solve for x
    x = 6,033,824,811.03/111,089.80
  6. Step 6: Final answer
    x = 54,314.84

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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.