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Finding the Third Proportional to 74,816 and 163,712

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Solution

The third proportional to 74,816 and 163,712 is: 358,233.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,816 : 163,712 = 163,712 : x
  2. Step 2: Convert to fraction form
    74,816/163,712 = 163,712/x
  3. Step 3: Cross multiply
    74,816x = 163,712 × 163,712
  4. Step 4: Simplify right side
    74,816x = 26,801,618,944
  5. Step 5: Solve for x
    x = 26,801,618,944/74,816
  6. Step 6: Final answer
    x = 358,233.79

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.