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Finding the Third Proportional to 67,178.25 and 146,637

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Solution

The third proportional to 67,178.25 and 146,637 is: 320,079.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,178.25 : 146,637 = 146,637 : x
  2. Step 2: Convert to fraction form
    67,178.25/146,637 = 146,637/x
  3. Step 3: Cross multiply
    67,178.25x = 146,637 × 146,637
  4. Step 4: Simplify right side
    67,178.25x = 21,502,409,769
  5. Step 5: Solve for x
    x = 21,502,409,769/67,178.25
  6. Step 6: Final answer
    x = 320,079.93

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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.