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Finding the Fourth Proportional to 171,037.80, 256,556.70 and 82,300.28

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Solution

The fourth proportional to 171,037.80, 256,556.70 and 82,300.28 is: 123,450.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,037.80 : 256,556.70 = 82,300.28 : x
  2. Step 2: Convert to fraction form
    171,037.80/256,556.70 = 82,300.28/x
  3. Step 3: Cross multiply
    171,037.80x = 256,556.70 × 82,300.28
  4. Step 4: Simplify right side
    171,037.80x = 21,114,686,963.09
  5. Step 5: Solve for x
    x = 21,114,686,963.09/171,037.80
  6. Step 6: Final answer
    x = 123,450.41

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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.