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Finding the Third Proportional to 74,383 and 163,855

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Solution

The third proportional to 74,383 and 163,855 is: 360,948.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,383 : 163,855 = 163,855 : x
  2. Step 2: Convert to fraction form
    74,383/163,855 = 163,855/x
  3. Step 3: Cross multiply
    74,383x = 163,855 × 163,855
  4. Step 4: Simplify right side
    74,383x = 26,848,461,025
  5. Step 5: Solve for x
    x = 26,848,461,025/74,383
  6. Step 6: Final answer
    x = 360,948.89

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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.