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Finding the Fourth Proportional to 231,771.78, 347,657.67 and 126,533.34

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Solution

The fourth proportional to 231,771.78, 347,657.67 and 126,533.34 is: 189,800.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,771.78 : 347,657.67 = 126,533.34 : x
  2. Step 2: Convert to fraction form
    231,771.78/347,657.67 = 126,533.34/x
  3. Step 3: Cross multiply
    231,771.78x = 347,657.67 × 126,533.34
  4. Step 4: Simplify right side
    231,771.78x = 43,990,286,161.72
  5. Step 5: Solve for x
    x = 43,990,286,161.72/231,771.78
  6. Step 6: Final answer
    x = 189,800.01

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1.5x scale

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.