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Finding the Third Proportional to 76,868 and 162,528

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Solution

The third proportional to 76,868 and 162,528 is: 343,645.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,868 : 162,528 = 162,528 : x
  2. Step 2: Convert to fraction form
    76,868/162,528 = 162,528/x
  3. Step 3: Cross multiply
    76,868x = 162,528 × 162,528
  4. Step 4: Simplify right side
    76,868x = 26,415,350,784
  5. Step 5: Solve for x
    x = 26,415,350,784/76,868
  6. Step 6: Final answer
    x = 343,645.61

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.