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Finding the Fourth Proportional to 94,067.80, 129,813.65 and 53,782.41

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Solution

The fourth proportional to 94,067.80, 129,813.65 and 53,782.41 is: 74,219.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,067.80 : 129,813.65 = 53,782.41 : x
  2. Step 2: Convert to fraction form
    94,067.80/129,813.65 = 53,782.41/x
  3. Step 3: Cross multiply
    94,067.80x = 129,813.65 × 53,782.41
  4. Step 4: Simplify right side
    94,067.80x = 6,981,690,947.90
  5. Step 5: Solve for x
    x = 6,981,690,947.90/94,067.80
  6. Step 6: Final answer
    x = 74,219.77

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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.