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Finding the Fourth Proportional to 179,415.20, 269,122.80 and 149,890.70

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Solution

The fourth proportional to 179,415.20, 269,122.80 and 149,890.70 is: 224,836.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,415.20 : 269,122.80 = 149,890.70 : x
  2. Step 2: Convert to fraction form
    179,415.20/269,122.80 = 149,890.70/x
  3. Step 3: Cross multiply
    179,415.20x = 269,122.80 × 149,890.70
  4. Step 4: Simplify right side
    179,415.20x = 40,339,004,877.96
  5. Step 5: Solve for x
    x = 40,339,004,877.96/179,415.20
  6. Step 6: Final answer
    x = 224,836.05

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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.