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Finding the Third Proportional to 74,940 and 163,704

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Solution

The third proportional to 74,940 and 163,704 is: 357,606.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,940 : 163,704 = 163,704 : x
  2. Step 2: Convert to fraction form
    74,940/163,704 = 163,704/x
  3. Step 3: Cross multiply
    74,940x = 163,704 × 163,704
  4. Step 4: Simplify right side
    74,940x = 26,798,999,616
  5. Step 5: Solve for x
    x = 26,798,999,616/74,940
  6. Step 6: Final answer
    x = 357,606.08

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.