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Finding the Third Proportional to 84,748 and 186,520

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Solution

The third proportional to 84,748 and 186,520 is: 410,507.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,748 : 186,520 = 186,520 : x
  2. Step 2: Convert to fraction form
    84,748/186,520 = 186,520/x
  3. Step 3: Cross multiply
    84,748x = 186,520 × 186,520
  4. Step 4: Simplify right side
    84,748x = 34,789,710,400
  5. Step 5: Solve for x
    x = 34,789,710,400/84,748
  6. Step 6: Final answer
    x = 410,507.75

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.