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Finding the Fourth Proportional to 263,794.10, 395,687.60 and 64,113.90

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Solution

The fourth proportional to 263,794.10, 395,687.60 and 64,113.90 is: 96,169.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,794.10 : 395,687.60 = 64,113.90 : x
  2. Step 2: Convert to fraction form
    263,794.10/395,687.60 = 64,113.90/x
  3. Step 3: Cross multiply
    263,794.10x = 395,687.60 × 64,113.90
  4. Step 4: Simplify right side
    263,794.10x = 25,369,075,217.64
  5. Step 5: Solve for x
    x = 25,369,075,217.64/263,794.10
  6. Step 6: Final answer
    x = 96,169.99

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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.