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Finding the Fourth Proportional to 79,323.86, 118,827.15 and 47,716.44

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Solution

The fourth proportional to 79,323.86, 118,827.15 and 47,716.44 is: 71,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,323.86 : 118,827.15 = 47,716.44 : x
  2. Step 2: Convert to fraction form
    79,323.86/118,827.15 = 47,716.44/x
  3. Step 3: Cross multiply
    79,323.86x = 118,827.15 × 47,716.44
  4. Step 4: Simplify right side
    79,323.86x = 5,670,008,573.35
  5. Step 5: Solve for x
    x = 5,670,008,573.35/79,323.86
  6. Step 6: Final answer
    x = 71,479.24

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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.