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Finding the Third Proportional to 93 and 139.25

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Solution

The third proportional to 93 and 139.25 is: 208.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93 : 139.25 = 139.25 : x
  2. Step 2: Convert to fraction form
    93/139.25 = 139.25/x
  3. Step 3: Cross multiply
    93x = 139.25 × 139.25
  4. Step 4: Simplify right side
    93x = 19,390.56
  5. Step 5: Solve for x
    x = 19,390.56/93
  6. Step 6: Final answer
    x = 208.50

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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.