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Finding the Third Proportional to 82,411 and 176,485

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Solution

The third proportional to 82,411 and 176,485 is: 377,946.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,411 : 176,485 = 176,485 : x
  2. Step 2: Convert to fraction form
    82,411/176,485 = 176,485/x
  3. Step 3: Cross multiply
    82,411x = 176,485 × 176,485
  4. Step 4: Simplify right side
    82,411x = 31,146,955,225
  5. Step 5: Solve for x
    x = 31,146,955,225/82,411
  6. Step 6: Final answer
    x = 377,946.58

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.