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Finding the Fourth Proportional to 231,761.62, 319,975.55 and 177,939.55

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Solution

The fourth proportional to 231,761.62, 319,975.55 and 177,939.55 is: 245,667.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,761.62 : 319,975.55 = 177,939.55 : x
  2. Step 2: Convert to fraction form
    231,761.62/319,975.55 = 177,939.55/x
  3. Step 3: Cross multiply
    231,761.62x = 319,975.55 × 177,939.55
  4. Step 4: Simplify right side
    231,761.62x = 56,936,305,378.00
  5. Step 5: Solve for x
    x = 56,936,305,378.00/231,761.62
  6. Step 6: Final answer
    x = 245,667.53

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1.5x scale

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.