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Finding the Third Proportional to 98.75 and 119

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Solution

The third proportional to 98.75 and 119 is: 143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98.75 : 119 = 119 : x
  2. Step 2: Convert to fraction form
    98.75/119 = 119/x
  3. Step 3: Cross multiply
    98.75x = 119 × 119
  4. Step 4: Simplify right side
    98.75x = 14,161
  5. Step 5: Solve for x
    x = 14,161/98.75
  6. Step 6: Final answer
    x = 143.40

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.