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Finding the Fourth Proportional to 171,156.90, 256,735.39 and 64,511.97

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Solution

The fourth proportional to 171,156.90, 256,735.39 and 64,511.97 is: 96,767.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,156.90 : 256,735.39 = 64,511.97 : x
  2. Step 2: Convert to fraction form
    171,156.90/256,735.39 = 64,511.97/x
  3. Step 3: Cross multiply
    171,156.90x = 256,735.39 × 64,511.97
  4. Step 4: Simplify right side
    171,156.90x = 16,562,505,777.62
  5. Step 5: Solve for x
    x = 16,562,505,777.62/171,156.90
  6. Step 6: Final answer
    x = 96,767.97

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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.