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Finding the Fourth Proportional to 167,121.78, 250,664.82 and 47,175.78

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Solution

The fourth proportional to 167,121.78, 250,664.82 and 47,175.78 is: 70,758.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,121.78 : 250,664.82 = 47,175.78 : x
  2. Step 2: Convert to fraction form
    167,121.78/250,664.82 = 47,175.78/x
  3. Step 3: Cross multiply
    167,121.78x = 250,664.82 × 47,175.78
  4. Step 4: Simplify right side
    167,121.78x = 11,825,308,402.06
  5. Step 5: Solve for x
    x = 11,825,308,402.06/167,121.78
  6. Step 6: Final answer
    x = 70,758.63

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1.5x scale

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.