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Finding the Third Proportional to 77,907 and 170,556

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Solution

The third proportional to 77,907 and 170,556 is: 373,385.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,907 : 170,556 = 170,556 : x
  2. Step 2: Convert to fraction form
    77,907/170,556 = 170,556/x
  3. Step 3: Cross multiply
    77,907x = 170,556 × 170,556
  4. Step 4: Simplify right side
    77,907x = 29,089,349,136
  5. Step 5: Solve for x
    x = 29,089,349,136/77,907
  6. Step 6: Final answer
    x = 373,385.56

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.