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Finding the Fourth Proportional to 171,157.41, 256,736.15 and 64,512.47

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Solution

The fourth proportional to 171,157.41, 256,736.15 and 64,512.47 is: 96,768.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,157.41 : 256,736.15 = 64,512.47 : x
  2. Step 2: Convert to fraction form
    171,157.41/256,736.15 = 64,512.47/x
  3. Step 3: Cross multiply
    171,157.41x = 256,736.15 × 64,512.47
  4. Step 4: Simplify right side
    171,157.41x = 16,562,681,568.55
  5. Step 5: Solve for x
    x = 16,562,681,568.55/171,157.41
  6. Step 6: Final answer
    x = 96,768.71

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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.