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Finding the Fourth Proportional to 171,393.64, 256,643.34 and 137,930.92

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Solution

The fourth proportional to 171,393.64, 256,643.34 and 137,930.92 is: 206,536.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,393.64 : 256,643.34 = 137,930.92 : x
  2. Step 2: Convert to fraction form
    171,393.64/256,643.34 = 137,930.92/x
  3. Step 3: Cross multiply
    171,393.64x = 256,643.34 × 137,930.92
  4. Step 4: Simplify right side
    171,393.64x = 35,399,051,998.07
  5. Step 5: Solve for x
    x = 35,399,051,998.07/171,393.64
  6. Step 6: Final answer
    x = 206,536.56

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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.