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Finding the Fourth Proportional to 188,958.30, 283,546.80 and 70,641.60

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Solution

The fourth proportional to 188,958.30, 283,546.80 and 70,641.60 is: 106,003.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,958.30 : 283,546.80 = 70,641.60 : x
  2. Step 2: Convert to fraction form
    188,958.30/283,546.80 = 70,641.60/x
  3. Step 3: Cross multiply
    188,958.30x = 283,546.80 × 70,641.60
  4. Step 4: Simplify right side
    188,958.30x = 20,030,199,626.88
  5. Step 5: Solve for x
    x = 20,030,199,626.88/188,958.30
  6. Step 6: Final answer
    x = 106,003.28

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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.