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Finding the Third Proportional to 178,779 and 265,075

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Solution

The third proportional to 178,779 and 265,075 is: 393,025.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,779 : 265,075 = 265,075 : x
  2. Step 2: Convert to fraction form
    178,779/265,075 = 265,075/x
  3. Step 3: Cross multiply
    178,779x = 265,075 × 265,075
  4. Step 4: Simplify right side
    178,779x = 70,264,755,625
  5. Step 5: Solve for x
    x = 70,264,755,625/178,779
  6. Step 6: Final answer
    x = 393,025.78

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.