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Finding the Fourth Proportional to 295,704.20, 443,556.30 and 137,948.60

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Solution

The fourth proportional to 295,704.20, 443,556.30 and 137,948.60 is: 206,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,704.20 : 443,556.30 = 137,948.60 : x
  2. Step 2: Convert to fraction form
    295,704.20/443,556.30 = 137,948.60/x
  3. Step 3: Cross multiply
    295,704.20x = 443,556.30 × 137,948.60
  4. Step 4: Simplify right side
    295,704.20x = 61,187,970,606.18
  5. Step 5: Solve for x
    x = 61,187,970,606.18/295,704.20
  6. Step 6: Final answer
    x = 206,922.90

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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.