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Finding the Fourth Proportional to 218,104.54, 327,156.91 and 68,356.49

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Solution

The fourth proportional to 218,104.54, 327,156.91 and 68,356.49 is: 102,534.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,104.54 : 327,156.91 = 68,356.49 : x
  2. Step 2: Convert to fraction form
    218,104.54/327,156.91 = 68,356.49/x
  3. Step 3: Cross multiply
    218,104.54x = 327,156.91 × 68,356.49
  4. Step 4: Simplify right side
    218,104.54x = 22,363,296,240.17
  5. Step 5: Solve for x
    x = 22,363,296,240.17/218,104.54
  6. Step 6: Final answer
    x = 102,534.76

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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.