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Finding the Fourth Proportional to 79,375.97, 109,542.44 and 47,544.19

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Solution

The fourth proportional to 79,375.97, 109,542.44 and 47,544.19 is: 65,613.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,375.97 : 109,542.44 = 47,544.19 : x
  2. Step 2: Convert to fraction form
    79,375.97/109,542.44 = 47,544.19/x
  3. Step 3: Cross multiply
    79,375.97x = 109,542.44 × 47,544.19
  4. Step 4: Simplify right side
    79,375.97x = 5,208,106,425.43
  5. Step 5: Solve for x
    x = 5,208,106,425.43/79,375.97
  6. Step 6: Final answer
    x = 65,613.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.