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Finding the Fourth Proportional to 180,628.66, 270,981.03 and 68,306.39

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Solution

The fourth proportional to 180,628.66, 270,981.03 and 68,306.39 is: 102,473.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,628.66 : 270,981.03 = 68,306.39 : x
  2. Step 2: Convert to fraction form
    180,628.66/270,981.03 = 68,306.39/x
  3. Step 3: Cross multiply
    180,628.66x = 270,981.03 × 68,306.39
  4. Step 4: Simplify right side
    180,628.66x = 18,509,735,917.78
  5. Step 5: Solve for x
    x = 18,509,735,917.78/180,628.66
  6. Step 6: Final answer
    x = 102,473.97

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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.