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Finding the Fourth Proportional to 79,245.20, 118,873.20 and 25,205.60

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Solution

The fourth proportional to 79,245.20, 118,873.20 and 25,205.60 is: 37,810.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,245.20 : 118,873.20 = 25,205.60 : x
  2. Step 2: Convert to fraction form
    79,245.20/118,873.20 = 25,205.60/x
  3. Step 3: Cross multiply
    79,245.20x = 118,873.20 × 25,205.60
  4. Step 4: Simplify right side
    79,245.20x = 2,996,270,329.92
  5. Step 5: Solve for x
    x = 2,996,270,329.92/79,245.20
  6. Step 6: Final answer
    x = 37,810.12

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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.