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Finding the Fourth Proportional to 111,286.96, 166,940.79 and 36,407.59

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Solution

The fourth proportional to 111,286.96, 166,940.79 and 36,407.59 is: 54,614.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,286.96 : 166,940.79 = 36,407.59 : x
  2. Step 2: Convert to fraction form
    111,286.96/166,940.79 = 36,407.59/x
  3. Step 3: Cross multiply
    111,286.96x = 166,940.79 × 36,407.59
  4. Step 4: Simplify right side
    111,286.96x = 6,077,911,836.60
  5. Step 5: Solve for x
    x = 6,077,911,836.60/111,286.96
  6. Step 6: Final answer
    x = 54,614.77

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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.