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Finding the Fourth Proportional to 323,399.28, 485,240.04 and 113,188.08

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Solution

The fourth proportional to 323,399.28, 485,240.04 and 113,188.08 is: 169,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,399.28 : 485,240.04 = 113,188.08 : x
  2. Step 2: Convert to fraction form
    323,399.28/485,240.04 = 113,188.08/x
  3. Step 3: Cross multiply
    323,399.28x = 485,240.04 × 113,188.08
  4. Step 4: Simplify right side
    323,399.28x = 54,923,388,466.72
  5. Step 5: Solve for x
    x = 54,923,388,466.72/323,399.28
  6. Step 6: Final answer
    x = 169,831.51

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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.