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Finding the Fourth Proportional to 272,355.49, 375,855.83 and 159,243.85

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Solution

The fourth proportional to 272,355.49, 375,855.83 and 159,243.85 is: 219,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,355.49 : 375,855.83 = 159,243.85 : x
  2. Step 2: Convert to fraction form
    272,355.49/375,855.83 = 159,243.85/x
  3. Step 3: Cross multiply
    272,355.49x = 375,855.83 × 159,243.85
  4. Step 4: Simplify right side
    272,355.49x = 59,852,729,414.15
  5. Step 5: Solve for x
    x = 59,852,729,414.15/272,355.49
  6. Step 6: Final answer
    x = 219,759.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.