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Finding the Fourth Proportional to 151,578.72, 227,270.88 and 67,364.64

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Solution

The fourth proportional to 151,578.72, 227,270.88 and 67,364.64 is: 101,003.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,578.72 : 227,270.88 = 67,364.64 : x
  2. Step 2: Convert to fraction form
    151,578.72/227,270.88 = 67,364.64/x
  3. Step 3: Cross multiply
    151,578.72x = 227,270.88 × 67,364.64
  4. Step 4: Simplify right side
    151,578.72x = 15,310,021,013.68
  5. Step 5: Solve for x
    x = 15,310,021,013.68/151,578.72
  6. Step 6: Final answer
    x = 101,003.76

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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.