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Finding the Fourth Proportional to 179,553.70, 269,006.55 and 85,852.90

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Solution

The fourth proportional to 179,553.70, 269,006.55 and 85,852.90 is: 128,624.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,553.70 : 269,006.55 = 85,852.90 : x
  2. Step 2: Convert to fraction form
    179,553.70/269,006.55 = 85,852.90/x
  3. Step 3: Cross multiply
    179,553.70x = 269,006.55 × 85,852.90
  4. Step 4: Simplify right side
    179,553.70x = 23,094,992,436.50
  5. Step 5: Solve for x
    x = 23,094,992,436.50/179,553.70
  6. Step 6: Final answer
    x = 128,624.43

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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.