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Finding the Fourth Proportional to 323,129.07, 445,935.78 and 179,885.97

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Solution

The fourth proportional to 323,129.07, 445,935.78 and 179,885.97 is: 248,252.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,129.07 : 445,935.78 = 179,885.97 : x
  2. Step 2: Convert to fraction form
    323,129.07/445,935.78 = 179,885.97/x
  3. Step 3: Cross multiply
    323,129.07x = 445,935.78 × 179,885.97
  4. Step 4: Simplify right side
    323,129.07x = 80,217,590,343.01
  5. Step 5: Solve for x
    x = 80,217,590,343.01/323,129.07
  6. Step 6: Final answer
    x = 248,252.47

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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.