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Finding the Third Proportional to 194 and 312.50

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Solution

The third proportional to 194 and 312.50 is: 503.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    194 : 312.50 = 312.50 : x
  2. Step 2: Convert to fraction form
    194/312.50 = 312.50/x
  3. Step 3: Cross multiply
    194x = 312.50 × 312.50
  4. Step 4: Simplify right side
    194x = 97,656.25
  5. Step 5: Solve for x
    x = 97,656.25/194
  6. Step 6: Final answer
    x = 503.38

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These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.