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Finding the Third Proportional to 79,683.75 and 171,636.75

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Solution

The third proportional to 79,683.75 and 171,636.75 is: 369,701.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,683.75 : 171,636.75 = 171,636.75 : x
  2. Step 2: Convert to fraction form
    79,683.75/171,636.75 = 171,636.75/x
  3. Step 3: Cross multiply
    79,683.75x = 171,636.75 × 171,636.75
  4. Step 4: Simplify right side
    79,683.75x = 29,459,173,950.56
  5. Step 5: Solve for x
    x = 29,459,173,950.56/79,683.75
  6. Step 6: Final answer
    x = 369,701.15

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.