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Finding the Fourth Proportional to 163,222.84, 244,786.78 and 68,450.50

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Solution

The fourth proportional to 163,222.84, 244,786.78 and 68,450.50 is: 102,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,222.84 : 244,786.78 = 68,450.50 : x
  2. Step 2: Convert to fraction form
    163,222.84/244,786.78 = 68,450.50/x
  3. Step 3: Cross multiply
    163,222.84x = 244,786.78 × 68,450.50
  4. Step 4: Simplify right side
    163,222.84x = 16,755,775,918.20
  5. Step 5: Solve for x
    x = 16,755,775,918.20/163,222.84
  6. Step 6: Final answer
    x = 102,655.83

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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.