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Finding the Fourth Proportional to 413,743.80, 620,922.90 and 164,604.60

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Solution

The fourth proportional to 413,743.80, 620,922.90 and 164,604.60 is: 247,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,743.80 : 620,922.90 = 164,604.60 : x
  2. Step 2: Convert to fraction form
    413,743.80/620,922.90 = 164,604.60/x
  3. Step 3: Cross multiply
    413,743.80x = 620,922.90 × 164,604.60
  4. Step 4: Simplify right side
    413,743.80x = 102,206,765,585.34
  5. Step 5: Solve for x
    x = 102,206,765,585.34/413,743.80
  6. Step 6: Final answer
    x = 247,029.12

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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.