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Finding the Fourth Proportional to 80,936.96, 111,693.12 and 46,951.88

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Solution

The fourth proportional to 80,936.96, 111,693.12 and 46,951.88 is: 64,793.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,936.96 : 111,693.12 = 46,951.88 : x
  2. Step 2: Convert to fraction form
    80,936.96/111,693.12 = 46,951.88/x
  3. Step 3: Cross multiply
    80,936.96x = 111,693.12 × 46,951.88
  4. Step 4: Simplify right side
    80,936.96x = 5,244,201,967.07
  5. Step 5: Solve for x
    x = 5,244,201,967.07/80,936.96
  6. Step 6: Final answer
    x = 64,793.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.