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Finding the Fourth Proportional to 322,574.28, 445,071.15 and 195,225.27

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Solution

The fourth proportional to 322,574.28, 445,071.15 and 195,225.27 is: 269,361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,574.28 : 445,071.15 = 195,225.27 : x
  2. Step 2: Convert to fraction form
    322,574.28/445,071.15 = 195,225.27/x
  3. Step 3: Cross multiply
    322,574.28x = 445,071.15 × 195,225.27
  4. Step 4: Simplify right side
    322,574.28x = 86,889,135,427.96
  5. Step 5: Solve for x
    x = 86,889,135,427.96/322,574.28
  6. Step 6: Final answer
    x = 269,361.63

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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.