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Finding the Fourth Proportional to 79,198.47, 118,798.20 and 19,226.79

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Solution

The fourth proportional to 79,198.47, 118,798.20 and 19,226.79 is: 28,840.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,198.47 : 118,798.20 = 19,226.79 : x
  2. Step 2: Convert to fraction form
    79,198.47/118,798.20 = 19,226.79/x
  3. Step 3: Cross multiply
    79,198.47x = 118,798.20 × 19,226.79
  4. Step 4: Simplify right side
    79,198.47x = 2,284,108,043.78
  5. Step 5: Solve for x
    x = 2,284,108,043.78/79,198.47
  6. Step 6: Final answer
    x = 28,840.31

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1.5x scale

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.