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Finding the Fourth Proportional to 126,794.70, 190,085.01 and 79,944.30

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Solution

The fourth proportional to 126,794.70, 190,085.01 and 79,944.30 is: 119,848.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,794.70 : 190,085.01 = 79,944.30 : x
  2. Step 2: Convert to fraction form
    126,794.70/190,085.01 = 79,944.30/x
  3. Step 3: Cross multiply
    126,794.70x = 190,085.01 × 79,944.30
  4. Step 4: Simplify right side
    126,794.70x = 15,196,213,064.94
  5. Step 5: Solve for x
    x = 15,196,213,064.94/126,794.70
  6. Step 6: Final answer
    x = 119,848.96

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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.