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Finding the Fourth Proportional to 355,168.89, 490,131.27 and 194,033.16

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Solution

The fourth proportional to 355,168.89, 490,131.27 and 194,033.16 is: 267,764.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,168.89 : 490,131.27 = 194,033.16 : x
  2. Step 2: Convert to fraction form
    355,168.89/490,131.27 = 194,033.16/x
  3. Step 3: Cross multiply
    355,168.89x = 490,131.27 × 194,033.16
  4. Step 4: Simplify right side
    355,168.89x = 95,101,719,132.91
  5. Step 5: Solve for x
    x = 95,101,719,132.91/355,168.89
  6. Step 6: Final answer
    x = 267,764.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.