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Finding the Fourth Proportional to 263,461.71, 395,193.60 and 63,781.80

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Solution

The fourth proportional to 263,461.71, 395,193.60 and 63,781.80 is: 95,672.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,461.71 : 395,193.60 = 63,781.80 : x
  2. Step 2: Convert to fraction form
    263,461.71/395,193.60 = 63,781.80/x
  3. Step 3: Cross multiply
    263,461.71x = 395,193.60 × 63,781.80
  4. Step 4: Simplify right side
    263,461.71x = 25,206,157,674.50
  5. Step 5: Solve for x
    x = 25,206,157,674.50/263,461.71
  6. Step 6: Final answer
    x = 95,672.94

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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.