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Finding the Fourth Proportional to 231,754.23, 319,853.23 and 167,431.55

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Solution

The fourth proportional to 231,754.23, 319,853.23 and 167,431.55 is: 231,078.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,754.23 : 319,853.23 = 167,431.55 : x
  2. Step 2: Convert to fraction form
    231,754.23/319,853.23 = 167,431.55/x
  3. Step 3: Cross multiply
    231,754.23x = 319,853.23 × 167,431.55
  4. Step 4: Simplify right side
    231,754.23x = 53,553,520,053.56
  5. Step 5: Solve for x
    x = 53,553,520,053.56/231,754.23
  6. Step 6: Final answer
    x = 231,078.93

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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.