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Finding the Fourth Proportional to 263,991.69, 364,311.14 and 143,132.67

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Solution

The fourth proportional to 263,991.69, 364,311.14 and 143,132.67 is: 197,524.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,991.69 : 364,311.14 = 143,132.67 : x
  2. Step 2: Convert to fraction form
    263,991.69/364,311.14 = 143,132.67/x
  3. Step 3: Cross multiply
    263,991.69x = 364,311.14 × 143,132.67
  4. Step 4: Simplify right side
    263,991.69x = 52,144,825,463.28
  5. Step 5: Solve for x
    x = 52,144,825,463.28/263,991.69
  6. Step 6: Final answer
    x = 197,524.50

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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.