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Finding the Third Proportional to 170,788 and 256,732

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Solution

The third proportional to 170,788 and 256,732 is: 385,924.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,788 : 256,732 = 256,732 : x
  2. Step 2: Convert to fraction form
    170,788/256,732 = 256,732/x
  3. Step 3: Cross multiply
    170,788x = 256,732 × 256,732
  4. Step 4: Simplify right side
    170,788x = 65,911,319,824
  5. Step 5: Solve for x
    x = 65,911,319,824/170,788
  6. Step 6: Final answer
    x = 385,924.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.