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Finding the Third Proportional to 74,932 and 162,440

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Solution

The third proportional to 74,932 and 162,440 is: 352,142.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,932 : 162,440 = 162,440 : x
  2. Step 2: Convert to fraction form
    74,932/162,440 = 162,440/x
  3. Step 3: Cross multiply
    74,932x = 162,440 × 162,440
  4. Step 4: Simplify right side
    74,932x = 26,386,753,600
  5. Step 5: Solve for x
    x = 26,386,753,600/74,932
  6. Step 6: Final answer
    x = 352,142.66

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.