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Finding the Fourth Proportional to 79,169.88, 118,760.58 and 26,578.92

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Solution

The fourth proportional to 79,169.88, 118,760.58 and 26,578.92 is: 39,870.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,169.88 : 118,760.58 = 26,578.92 : x
  2. Step 2: Convert to fraction form
    79,169.88/118,760.58 = 26,578.92/x
  3. Step 3: Cross multiply
    79,169.88x = 118,760.58 × 26,578.92
  4. Step 4: Simplify right side
    79,169.88x = 3,156,527,954.97
  5. Step 5: Solve for x
    x = 3,156,527,954.97/79,169.88
  6. Step 6: Final answer
    x = 39,870.31

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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.