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Finding the Fourth Proportional to 84,804.14, 126,964.29 and 67,299.50

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Solution

The fourth proportional to 84,804.14, 126,964.29 and 67,299.50 is: 100,757.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,804.14 : 126,964.29 = 67,299.50 : x
  2. Step 2: Convert to fraction form
    84,804.14/126,964.29 = 67,299.50/x
  3. Step 3: Cross multiply
    84,804.14x = 126,964.29 × 67,299.50
  4. Step 4: Simplify right side
    84,804.14x = 8,544,633,234.86
  5. Step 5: Solve for x
    x = 8,544,633,234.86/84,804.14
  6. Step 6: Final answer
    x = 100,757.27

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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.