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Finding the Third Proportional to 162,978.75 and 353,085.75

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Solution

The third proportional to 162,978.75 and 353,085.75 is: 764,943.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,978.75 : 353,085.75 = 353,085.75 : x
  2. Step 2: Convert to fraction form
    162,978.75/353,085.75 = 353,085.75/x
  3. Step 3: Cross multiply
    162,978.75x = 353,085.75 × 353,085.75
  4. Step 4: Simplify right side
    162,978.75x = 124,669,546,853.06
  5. Step 5: Solve for x
    x = 124,669,546,853.06/162,978.75
  6. Step 6: Final answer
    x = 764,943.57

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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.