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Finding the Fourth Proportional to 203,168.89, 279,731.57 and 178,954.75

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Solution

The fourth proportional to 203,168.89, 279,731.57 and 178,954.75 is: 246,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,168.89 : 279,731.57 = 178,954.75 : x
  2. Step 2: Convert to fraction form
    203,168.89/279,731.57 = 178,954.75/x
  3. Step 3: Cross multiply
    203,168.89x = 279,731.57 × 178,954.75
  4. Step 4: Simplify right side
    203,168.89x = 50,059,293,623.84
  5. Step 5: Solve for x
    x = 50,059,293,623.84/203,168.89
  6. Step 6: Final answer
    x = 246,392.51

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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.