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Finding the Third Proportional to 68,391.50 and 102,313.50

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Solution

The third proportional to 68,391.50 and 102,313.50 is: 153,060.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,391.50 : 102,313.50 = 102,313.50 : x
  2. Step 2: Convert to fraction form
    68,391.50/102,313.50 = 102,313.50/x
  3. Step 3: Cross multiply
    68,391.50x = 102,313.50 × 102,313.50
  4. Step 4: Simplify right side
    68,391.50x = 10,468,052,282.25
  5. Step 5: Solve for x
    x = 10,468,052,282.25/68,391.50
  6. Step 6: Final answer
    x = 153,060.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.