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Finding the Third Proportional to 163,926 and 360,009

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Solution

The third proportional to 163,926 and 360,009 is: 790,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,926 : 360,009 = 360,009 : x
  2. Step 2: Convert to fraction form
    163,926/360,009 = 360,009/x
  3. Step 3: Cross multiply
    163,926x = 360,009 × 360,009
  4. Step 4: Simplify right side
    163,926x = 129,606,480,081
  5. Step 5: Solve for x
    x = 129,606,480,081/163,926
  6. Step 6: Final answer
    x = 790,640.17

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.