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Finding the Fourth Proportional to 272,563.40, 408,845.10 and 201,704.60

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Solution

The fourth proportional to 272,563.40, 408,845.10 and 201,704.60 is: 302,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,563.40 : 408,845.10 = 201,704.60 : x
  2. Step 2: Convert to fraction form
    272,563.40/408,845.10 = 201,704.60/x
  3. Step 3: Cross multiply
    272,563.40x = 408,845.10 × 201,704.60
  4. Step 4: Simplify right side
    272,563.40x = 82,465,937,357.46
  5. Step 5: Solve for x
    x = 82,465,937,357.46/272,563.40
  6. Step 6: Final answer
    x = 302,556.90

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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.