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Finding the Fourth Proportional to 446,667.40, 669,770.70 and 166,040.20

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Solution

The fourth proportional to 446,667.40, 669,770.70 and 166,040.20 is: 248,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,667.40 : 669,770.70 = 166,040.20 : x
  2. Step 2: Convert to fraction form
    446,667.40/669,770.70 = 166,040.20/x
  3. Step 3: Cross multiply
    446,667.40x = 669,770.70 × 166,040.20
  4. Step 4: Simplify right side
    446,667.40x = 111,208,860,982.14
  5. Step 5: Solve for x
    x = 111,208,860,982.14/446,667.40
  6. Step 6: Final answer
    x = 248,974.65

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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.