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Finding the Fourth Proportional to 446,207.70, 669,577.49 and 161,920.43

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Solution

The fourth proportional to 446,207.70, 669,577.49 and 161,920.43 is: 242,977.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,207.70 : 669,577.49 = 161,920.43 : x
  2. Step 2: Convert to fraction form
    446,207.70/669,577.49 = 161,920.43/x
  3. Step 3: Cross multiply
    446,207.70x = 669,577.49 × 161,920.43
  4. Step 4: Simplify right side
    446,207.70x = 108,418,277,177.87
  5. Step 5: Solve for x
    x = 108,418,277,177.87/446,207.70
  6. Step 6: Final answer
    x = 242,977.15

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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.