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Finding the Fourth Proportional to 106,578.93, 147,079.19 and 58,180.89

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Solution

The fourth proportional to 106,578.93, 147,079.19 and 58,180.89 is: 80,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,578.93 : 147,079.19 = 58,180.89 : x
  2. Step 2: Convert to fraction form
    106,578.93/147,079.19 = 58,180.89/x
  3. Step 3: Cross multiply
    106,578.93x = 147,079.19 × 58,180.89
  4. Step 4: Simplify right side
    106,578.93x = 8,557,198,771.99
  5. Step 5: Solve for x
    x = 8,557,198,771.99/106,578.93
  6. Step 6: Final answer
    x = 80,289.78

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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.