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Finding the Fourth Proportional to 171,998.31, 257,898.14 and 66,694.26

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Solution

The fourth proportional to 171,998.31, 257,898.14 and 66,694.26 is: 100,002.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,998.31 : 257,898.14 = 66,694.26 : x
  2. Step 2: Convert to fraction form
    171,998.31/257,898.14 = 66,694.26/x
  3. Step 3: Cross multiply
    171,998.31x = 257,898.14 × 66,694.26
  4. Step 4: Simplify right side
    171,998.31x = 17,200,325,602.68
  5. Step 5: Solve for x
    x = 17,200,325,602.68/171,998.31
  6. Step 6: Final answer
    x = 100,002.88

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1.5x scale

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.