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Finding the Fourth Proportional to 147,022, 202,890.36 and 79,954

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Solution

The fourth proportional to 147,022, 202,890.36 and 79,954 is: 110,336.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,022 : 202,890.36 = 79,954 : x
  2. Step 2: Convert to fraction form
    147,022/202,890.36 = 79,954/x
  3. Step 3: Cross multiply
    147,022x = 202,890.36 × 79,954
  4. Step 4: Simplify right side
    147,022x = 16,221,895,843.44
  5. Step 5: Solve for x
    x = 16,221,895,843.44/147,022
  6. Step 6: Final answer
    x = 110,336.52

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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.