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Finding the Third Proportional to 68,472 and 148,176

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Solution

The third proportional to 68,472 and 148,176 is: 320,658.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,472 : 148,176 = 148,176 : x
  2. Step 2: Convert to fraction form
    68,472/148,176 = 148,176/x
  3. Step 3: Cross multiply
    68,472x = 148,176 × 148,176
  4. Step 4: Simplify right side
    68,472x = 21,956,126,976
  5. Step 5: Solve for x
    x = 21,956,126,976/68,472
  6. Step 6: Final answer
    x = 320,658.47

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.