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Finding the Fourth Proportional to 263,889.50, 364,166.18 and 143,029.80

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Solution

The fourth proportional to 263,889.50, 364,166.18 and 143,029.80 is: 197,380.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,889.50 : 364,166.18 = 143,029.80 : x
  2. Step 2: Convert to fraction form
    263,889.50/364,166.18 = 143,029.80/x
  3. Step 3: Cross multiply
    263,889.50x = 364,166.18 × 143,029.80
  4. Step 4: Simplify right side
    263,889.50x = 52,086,615,713.38
  5. Step 5: Solve for x
    x = 52,086,615,713.38/263,889.50
  6. Step 6: Final answer
    x = 197,380.41

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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.