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Finding the Fourth Proportional to 230,086.80, 345,130.20 and 171,037.80

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Solution

The fourth proportional to 230,086.80, 345,130.20 and 171,037.80 is: 256,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,086.80 : 345,130.20 = 171,037.80 : x
  2. Step 2: Convert to fraction form
    230,086.80/345,130.20 = 171,037.80/x
  3. Step 3: Cross multiply
    230,086.80x = 345,130.20 × 171,037.80
  4. Step 4: Simplify right side
    230,086.80x = 59,030,310,121.56
  5. Step 5: Solve for x
    x = 59,030,310,121.56/230,086.80
  6. Step 6: Final answer
    x = 256,556.70

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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.