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Finding the Third Proportional to 174,990 and 360,861

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Solution

The third proportional to 174,990 and 360,861 is: 744,160.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,990 : 360,861 = 360,861 : x
  2. Step 2: Convert to fraction form
    174,990/360,861 = 360,861/x
  3. Step 3: Cross multiply
    174,990x = 360,861 × 360,861
  4. Step 4: Simplify right side
    174,990x = 130,220,661,321
  5. Step 5: Solve for x
    x = 130,220,661,321/174,990
  6. Step 6: Final answer
    x = 744,160.59

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.