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Finding the Third Proportional to 171,715.50 and 372,987

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Solution

The third proportional to 171,715.50 and 372,987 is: 810,173.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,715.50 : 372,987 = 372,987 : x
  2. Step 2: Convert to fraction form
    171,715.50/372,987 = 372,987/x
  3. Step 3: Cross multiply
    171,715.50x = 372,987 × 372,987
  4. Step 4: Simplify right side
    171,715.50x = 139,119,302,169
  5. Step 5: Solve for x
    x = 139,119,302,169/171,715.50
  6. Step 6: Final answer
    x = 810,173.24

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.