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Finding the Third Proportional to 89,138 and 118,323

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Solution

The third proportional to 89,138 and 118,323 is: 157,063.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,138 : 118,323 = 118,323 : x
  2. Step 2: Convert to fraction form
    89,138/118,323 = 118,323/x
  3. Step 3: Cross multiply
    89,138x = 118,323 × 118,323
  4. Step 4: Simplify right side
    89,138x = 14,000,332,329
  5. Step 5: Solve for x
    x = 14,000,332,329/89,138
  6. Step 6: Final answer
    x = 157,063.57

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.