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Finding the Fourth Proportional to 79,611.93, 119,286.68 and 46,238.31

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Solution

The fourth proportional to 79,611.93, 119,286.68 and 46,238.31 is: 69,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,611.93 : 119,286.68 = 46,238.31 : x
  2. Step 2: Convert to fraction form
    79,611.93/119,286.68 = 46,238.31/x
  3. Step 3: Cross multiply
    79,611.93x = 119,286.68 × 46,238.31
  4. Step 4: Simplify right side
    79,611.93x = 5,515,614,257.52
  5. Step 5: Solve for x
    x = 5,515,614,257.52/79,611.93
  6. Step 6: Final answer
    x = 69,281.25

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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.