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Finding the Fourth Proportional to 446,667.90, 669,771.45 and 166,040.70

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Solution

The fourth proportional to 446,667.90, 669,771.45 and 166,040.70 is: 248,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,667.90 : 669,771.45 = 166,040.70 : x
  2. Step 2: Convert to fraction form
    446,667.90/669,771.45 = 166,040.70/x
  3. Step 3: Cross multiply
    446,667.90x = 669,771.45 × 166,040.70
  4. Step 4: Simplify right side
    446,667.90x = 111,209,320,398.02
  5. Step 5: Solve for x
    x = 111,209,320,398.02/446,667.90
  6. Step 6: Final answer
    x = 248,975.40

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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.