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Finding the Fourth Proportional to 106,908.69, 160,350.71 and 28,029.18

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Solution

The fourth proportional to 106,908.69, 160,350.71 and 28,029.18 is: 42,040.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,908.69 : 160,350.71 = 28,029.18 : x
  2. Step 2: Convert to fraction form
    106,908.69/160,350.71 = 28,029.18/x
  3. Step 3: Cross multiply
    106,908.69x = 160,350.71 × 28,029.18
  4. Step 4: Simplify right side
    106,908.69x = 4,494,498,773.57
  5. Step 5: Solve for x
    x = 4,494,498,773.57/106,908.69
  6. Step 6: Final answer
    x = 42,040.54

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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.