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Finding the Fourth Proportional to 171,966.80, 257,512.80 and 164,093.60

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Solution

The fourth proportional to 171,966.80, 257,512.80 and 164,093.60 is: 245,723.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,966.80 : 257,512.80 = 164,093.60 : x
  2. Step 2: Convert to fraction form
    171,966.80/257,512.80 = 164,093.60/x
  3. Step 3: Cross multiply
    171,966.80x = 257,512.80 × 164,093.60
  4. Step 4: Simplify right side
    171,966.80x = 42,256,202,398.08
  5. Step 5: Solve for x
    x = 42,256,202,398.08/171,966.80
  6. Step 6: Final answer
    x = 245,723.03

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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.