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Finding the Fourth Proportional to 150,628.82, 207,869.88 and 82,644.54

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Solution

The fourth proportional to 150,628.82, 207,869.88 and 82,644.54 is: 114,050.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,628.82 : 207,869.88 = 82,644.54 : x
  2. Step 2: Convert to fraction form
    150,628.82/207,869.88 = 82,644.54/x
  3. Step 3: Cross multiply
    150,628.82x = 207,869.88 × 82,644.54
  4. Step 4: Simplify right side
    150,628.82x = 17,179,310,612.46
  5. Step 5: Solve for x
    x = 17,179,310,612.46/150,628.82
  6. Step 6: Final answer
    x = 114,050.62

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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.