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Finding the Fourth Proportional to 404,556.20, 606,980.10 and 168,068.60

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Solution

The fourth proportional to 404,556.20, 606,980.10 and 168,068.60 is: 252,163.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,556.20 : 606,980.10 = 168,068.60 : x
  2. Step 2: Convert to fraction form
    404,556.20/606,980.10 = 168,068.60/x
  3. Step 3: Cross multiply
    404,556.20x = 606,980.10 × 168,068.60
  4. Step 4: Simplify right side
    404,556.20x = 102,014,295,634.86
  5. Step 5: Solve for x
    x = 102,014,295,634.86/404,556.20
  6. Step 6: Final answer
    x = 252,163.47

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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.