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Finding the Fourth Proportional to 228,874.72, 343,227.84 and 79,076.56

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Solution

The fourth proportional to 228,874.72, 343,227.84 and 79,076.56 is: 118,585.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,874.72 : 343,227.84 = 79,076.56 : x
  2. Step 2: Convert to fraction form
    228,874.72/343,227.84 = 79,076.56/x
  3. Step 3: Cross multiply
    228,874.72x = 343,227.84 × 79,076.56
  4. Step 4: Simplify right side
    228,874.72x = 27,141,276,883.43
  5. Step 5: Solve for x
    x = 27,141,276,883.43/228,874.72
  6. Step 6: Final answer
    x = 118,585.73

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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.