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Finding the Fourth Proportional to 263,766.42, 395,650.08 and 64,086.90

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Solution

The fourth proportional to 263,766.42, 395,650.08 and 64,086.90 is: 96,130.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,766.42 : 395,650.08 = 64,086.90 : x
  2. Step 2: Convert to fraction form
    263,766.42/395,650.08 = 64,086.90/x
  3. Step 3: Cross multiply
    263,766.42x = 395,650.08 × 64,086.90
  4. Step 4: Simplify right side
    263,766.42x = 25,355,987,111.95
  5. Step 5: Solve for x
    x = 25,355,987,111.95/263,766.42
  6. Step 6: Final answer
    x = 96,130.46

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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.