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Finding the Fourth Proportional to 79,213.60, 118,816.08 and 26,617.60

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Solution

The fourth proportional to 79,213.60, 118,816.08 and 26,617.60 is: 39,924.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,213.60 : 118,816.08 = 26,617.60 : x
  2. Step 2: Convert to fraction form
    79,213.60/118,816.08 = 26,617.60/x
  3. Step 3: Cross multiply
    79,213.60x = 118,816.08 × 26,617.60
  4. Step 4: Simplify right side
    79,213.60x = 3,162,598,891.01
  5. Step 5: Solve for x
    x = 3,162,598,891.01/79,213.60
  6. Step 6: Final answer
    x = 39,924.95

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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.