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Finding the Third Proportional to 164.50 and 359

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Solution

The third proportional to 164.50 and 359 is: 783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.50 : 359 = 359 : x
  2. Step 2: Convert to fraction form
    164.50/359 = 359/x
  3. Step 3: Cross multiply
    164.50x = 359 × 359
  4. Step 4: Simplify right side
    164.50x = 128,881
  5. Step 5: Solve for x
    x = 128,881/164.50
  6. Step 6: Final answer
    x = 783.47

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.