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Finding the Third Proportional to 79,965 and 119,507.50

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Solution

The third proportional to 79,965 and 119,507.50 is: 178,603.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,965 : 119,507.50 = 119,507.50 : x
  2. Step 2: Convert to fraction form
    79,965/119,507.50 = 119,507.50/x
  3. Step 3: Cross multiply
    79,965x = 119,507.50 × 119,507.50
  4. Step 4: Simplify right side
    79,965x = 14,282,042,556.25
  5. Step 5: Solve for x
    x = 14,282,042,556.25/79,965
  6. Step 6: Final answer
    x = 178,603.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.