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Finding the Third Proportional to 166,378 and 360,784

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Solution

The third proportional to 166,378 and 360,784 is: 782,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,378 : 360,784 = 360,784 : x
  2. Step 2: Convert to fraction form
    166,378/360,784 = 360,784/x
  3. Step 3: Cross multiply
    166,378x = 360,784 × 360,784
  4. Step 4: Simplify right side
    166,378x = 130,165,094,656
  5. Step 5: Solve for x
    x = 130,165,094,656/166,378
  6. Step 6: Final answer
    x = 782,345.59

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.