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Finding the Fourth Proportional to 140,794.69, 194,295.67 and 76,262.48

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Solution

The fourth proportional to 140,794.69, 194,295.67 and 76,262.48 is: 105,241.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,794.69 : 194,295.67 = 76,262.48 : x
  2. Step 2: Convert to fraction form
    140,794.69/194,295.67 = 76,262.48/x
  3. Step 3: Cross multiply
    140,794.69x = 194,295.67 × 76,262.48
  4. Step 4: Simplify right side
    140,794.69x = 14,817,469,647.46
  5. Step 5: Solve for x
    x = 14,817,469,647.46/140,794.69
  6. Step 6: Final answer
    x = 105,241.68

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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.