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Finding the Fourth Proportional to 276,668.40, 415,002.60 and 251,736.60

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Solution

The fourth proportional to 276,668.40, 415,002.60 and 251,736.60 is: 377,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,668.40 : 415,002.60 = 251,736.60 : x
  2. Step 2: Convert to fraction form
    276,668.40/415,002.60 = 251,736.60/x
  3. Step 3: Cross multiply
    276,668.40x = 415,002.60 × 251,736.60
  4. Step 4: Simplify right side
    276,668.40x = 104,471,343,515.16
  5. Step 5: Solve for x
    x = 104,471,343,515.16/276,668.40
  6. Step 6: Final answer
    x = 377,604.90

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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.