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Finding the Third Proportional to 164.25 and 313.50

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Solution

The third proportional to 164.25 and 313.50 is: 598.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.25 : 313.50 = 313.50 : x
  2. Step 2: Convert to fraction form
    164.25/313.50 = 313.50/x
  3. Step 3: Cross multiply
    164.25x = 313.50 × 313.50
  4. Step 4: Simplify right side
    164.25x = 98,282.25
  5. Step 5: Solve for x
    x = 98,282.25/164.25
  6. Step 6: Final answer
    x = 598.37

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Why These Related Problems?

These problems maintain the same ratio (1.91) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.