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Finding the Fourth Proportional to 194,804.80, 291,976.80 and 82,484.80

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Solution

The fourth proportional to 194,804.80, 291,976.80 and 82,484.80 is: 123,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,804.80 : 291,976.80 = 82,484.80 : x
  2. Step 2: Convert to fraction form
    194,804.80/291,976.80 = 82,484.80/x
  3. Step 3: Cross multiply
    194,804.80x = 291,976.80 × 82,484.80
  4. Step 4: Simplify right side
    194,804.80x = 24,083,647,952.64
  5. Step 5: Solve for x
    x = 24,083,647,952.64/194,804.80
  6. Step 6: Final answer
    x = 123,629.64

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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.