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Finding the Fourth Proportional to 83,067.79, 114,629.56 and 47,254.45

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Solution

The fourth proportional to 83,067.79, 114,629.56 and 47,254.45 is: 65,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,067.79 : 114,629.56 = 47,254.45 : x
  2. Step 2: Convert to fraction form
    83,067.79/114,629.56 = 47,254.45/x
  3. Step 3: Cross multiply
    83,067.79x = 114,629.56 × 47,254.45
  4. Step 4: Simplify right side
    83,067.79x = 5,416,756,811.54
  5. Step 5: Solve for x
    x = 5,416,756,811.54/83,067.79
  6. Step 6: Final answer
    x = 65,208.87

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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.