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Finding the Third Proportional to 82,316 and 122,932

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Solution

The third proportional to 82,316 and 122,932 is: 183,588.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,316 : 122,932 = 122,932 : x
  2. Step 2: Convert to fraction form
    82,316/122,932 = 122,932/x
  3. Step 3: Cross multiply
    82,316x = 122,932 × 122,932
  4. Step 4: Simplify right side
    82,316x = 15,112,276,624
  5. Step 5: Solve for x
    x = 15,112,276,624/82,316
  6. Step 6: Final answer
    x = 183,588.57

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.