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Finding the Fourth Proportional to 227,220.70, 340,831.06 and 69,447.82

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Solution

The fourth proportional to 227,220.70, 340,831.06 and 69,447.82 is: 104,171.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,220.70 : 340,831.06 = 69,447.82 : x
  2. Step 2: Convert to fraction form
    227,220.70/340,831.06 = 69,447.82/x
  3. Step 3: Cross multiply
    227,220.70x = 340,831.06 × 69,447.82
  4. Step 4: Simplify right side
    227,220.70x = 23,669,974,105.29
  5. Step 5: Solve for x
    x = 23,669,974,105.29/227,220.70
  6. Step 6: Final answer
    x = 104,171.73

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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.