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Finding the Fourth Proportional to 263,676.94, 395,539.71 and 86,184.88

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Solution

The fourth proportional to 263,676.94, 395,539.71 and 86,184.88 is: 129,285.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,676.94 : 395,539.71 = 86,184.88 : x
  2. Step 2: Convert to fraction form
    263,676.94/395,539.71 = 86,184.88/x
  3. Step 3: Cross multiply
    263,676.94x = 395,539.71 × 86,184.88
  4. Step 4: Simplify right side
    263,676.94x = 34,089,542,441.58
  5. Step 5: Solve for x
    x = 34,089,542,441.58/263,676.94
  6. Step 6: Final answer
    x = 129,285.26

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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.