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Finding the Fourth Proportional to 111,109.10, 166,687.95 and 36,232.70

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Solution

The fourth proportional to 111,109.10, 166,687.95 and 36,232.70 is: 54,356.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,109.10 : 166,687.95 = 36,232.70 : x
  2. Step 2: Convert to fraction form
    111,109.10/166,687.95 = 36,232.70/x
  3. Step 3: Cross multiply
    111,109.10x = 166,687.95 × 36,232.70
  4. Step 4: Simplify right side
    111,109.10x = 6,039,554,485.97
  5. Step 5: Solve for x
    x = 6,039,554,485.97/111,109.10
  6. Step 6: Final answer
    x = 54,356.97

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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.