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Finding the Fourth Proportional to 263,561.20, 395,341.81 and 63,881.60

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Solution

The fourth proportional to 263,561.20, 395,341.81 and 63,881.60 is: 95,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,561.20 : 395,341.81 = 63,881.60 : x
  2. Step 2: Convert to fraction form
    263,561.20/395,341.81 = 63,881.60/x
  3. Step 3: Cross multiply
    263,561.20x = 395,341.81 × 63,881.60
  4. Step 4: Simplify right side
    263,561.20x = 25,255,065,233.28
  5. Step 5: Solve for x
    x = 25,255,065,233.28/263,561.20
  6. Step 6: Final answer
    x = 95,822.39

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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.