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Finding the Fourth Proportional to 171,339.30, 256,969.46 and 64,734.59

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Solution

The fourth proportional to 171,339.30, 256,969.46 and 64,734.59 is: 97,086.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,339.30 : 256,969.46 = 64,734.59 : x
  2. Step 2: Convert to fraction form
    171,339.30/256,969.46 = 64,734.59/x
  3. Step 3: Cross multiply
    171,339.30x = 256,969.46 × 64,734.59
  4. Step 4: Simplify right side
    171,339.30x = 16,634,813,439.88
  5. Step 5: Solve for x
    x = 16,634,813,439.88/171,339.30
  6. Step 6: Final answer
    x = 97,086.97

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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.