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Finding the Third Proportional to 84,316.50 and 186,486

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Solution

The third proportional to 84,316.50 and 186,486 is: 412,458.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,316.50 : 186,486 = 186,486 : x
  2. Step 2: Convert to fraction form
    84,316.50/186,486 = 186,486/x
  3. Step 3: Cross multiply
    84,316.50x = 186,486 × 186,486
  4. Step 4: Simplify right side
    84,316.50x = 34,777,028,196
  5. Step 5: Solve for x
    x = 34,777,028,196/84,316.50
  6. Step 6: Final answer
    x = 412,458.16

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.