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Finding the Fourth Proportional to 70,614.52, 105,939.60 and 33,167.68

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Solution

The fourth proportional to 70,614.52, 105,939.60 and 33,167.68 is: 49,759.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,614.52 : 105,939.60 = 33,167.68 : x
  2. Step 2: Convert to fraction form
    70,614.52/105,939.60 = 33,167.68/x
  3. Step 3: Cross multiply
    70,614.52x = 105,939.60 × 33,167.68
  4. Step 4: Simplify right side
    70,614.52x = 3,513,770,752.13
  5. Step 5: Solve for x
    x = 3,513,770,752.13/70,614.52
  6. Step 6: Final answer
    x = 49,759.89

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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.