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Finding the Third Proportional to 79,240 and 168,656

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Solution

The third proportional to 79,240 and 168,656 is: 358,970.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,240 : 168,656 = 168,656 : x
  2. Step 2: Convert to fraction form
    79,240/168,656 = 168,656/x
  3. Step 3: Cross multiply
    79,240x = 168,656 × 168,656
  4. Step 4: Simplify right side
    79,240x = 28,444,846,336
  5. Step 5: Solve for x
    x = 28,444,846,336/79,240
  6. Step 6: Final answer
    x = 358,970.80

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.