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Finding the Third Proportional to 117,715.50 and 180,102.75

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Solution

The third proportional to 117,715.50 and 180,102.75 is: 275,554.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,715.50 : 180,102.75 = 180,102.75 : x
  2. Step 2: Convert to fraction form
    117,715.50/180,102.75 = 180,102.75/x
  3. Step 3: Cross multiply
    117,715.50x = 180,102.75 × 180,102.75
  4. Step 4: Simplify right side
    117,715.50x = 32,437,000,557.56
  5. Step 5: Solve for x
    x = 32,437,000,557.56/117,715.50
  6. Step 6: Final answer
    x = 275,554.20

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.