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Finding the Third Proportional to 166,639.78 and 358,568.44

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Solution

The third proportional to 166,639.78 and 358,568.44 is: 771,552.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,639.78 : 358,568.44 = 358,568.44 : x
  2. Step 2: Convert to fraction form
    166,639.78/358,568.44 = 358,568.44/x
  3. Step 3: Cross multiply
    166,639.78x = 358,568.44 × 358,568.44
  4. Step 4: Simplify right side
    166,639.78x = 128,571,324,371.19
  5. Step 5: Solve for x
    x = 128,571,324,371.19/166,639.78
  6. Step 6: Final answer
    x = 771,552.41

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.