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Finding the Fourth Proportional to 188,858.70, 283,190.85 and 70,469.10

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Solution

The fourth proportional to 188,858.70, 283,190.85 and 70,469.10 is: 105,667.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,858.70 : 283,190.85 = 70,469.10 : x
  2. Step 2: Convert to fraction form
    188,858.70/283,190.85 = 70,469.10/x
  3. Step 3: Cross multiply
    188,858.70x = 283,190.85 × 70,469.10
  4. Step 4: Simplify right side
    188,858.70x = 19,956,204,327.74
  5. Step 5: Solve for x
    x = 19,956,204,327.74/188,858.70
  6. Step 6: Final answer
    x = 105,667.38

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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.