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Finding the Fourth Proportional to 218,133.49, 327,204.39 and 68,370.49

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Solution

The fourth proportional to 218,133.49, 327,204.39 and 68,370.49 is: 102,557.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,133.49 : 327,204.39 = 68,370.49 : x
  2. Step 2: Convert to fraction form
    218,133.49/327,204.39 = 68,370.49/x
  3. Step 3: Cross multiply
    218,133.49x = 327,204.39 × 68,370.49
  4. Step 4: Simplify right side
    218,133.49x = 22,371,124,474.45
  5. Step 5: Solve for x
    x = 22,371,124,474.45/218,133.49
  6. Step 6: Final answer
    x = 102,557.04

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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.