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Finding the Fourth Proportional to 150,628.70, 207,869.64 and 82,644.44

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Solution

The fourth proportional to 150,628.70, 207,869.64 and 82,644.44 is: 114,050.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,628.70 : 207,869.64 = 82,644.44 : x
  2. Step 2: Convert to fraction form
    150,628.70/207,869.64 = 82,644.44/x
  3. Step 3: Cross multiply
    150,628.70x = 207,869.64 × 82,644.44
  4. Step 4: Simplify right side
    150,628.70x = 17,179,268,951.45
  5. Step 5: Solve for x
    x = 17,179,268,951.45/150,628.70
  6. Step 6: Final answer
    x = 114,050.44

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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.