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Finding the Third Proportional to 74,664 and 111,816

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Solution

The third proportional to 74,664 and 111,816 is: 167,454.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,664 : 111,816 = 111,816 : x
  2. Step 2: Convert to fraction form
    74,664/111,816 = 111,816/x
  3. Step 3: Cross multiply
    74,664x = 111,816 × 111,816
  4. Step 4: Simplify right side
    74,664x = 12,502,817,856
  5. Step 5: Solve for x
    x = 12,502,817,856/74,664
  6. Step 6: Final answer
    x = 167,454.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.