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Finding the Third Proportional to 82,363.50 and 120,447

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Solution

The third proportional to 82,363.50 and 120,447 is: 176,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,363.50 : 120,447 = 120,447 : x
  2. Step 2: Convert to fraction form
    82,363.50/120,447 = 120,447/x
  3. Step 3: Cross multiply
    82,363.50x = 120,447 × 120,447
  4. Step 4: Simplify right side
    82,363.50x = 14,507,479,809
  5. Step 5: Solve for x
    x = 14,507,479,809/82,363.50
  6. Step 6: Final answer
    x = 176,139.67

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.