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Finding the Fourth Proportional to 171,060.50, 256,601.30 and 65,879.57

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Solution

The fourth proportional to 171,060.50, 256,601.30 and 65,879.57 is: 98,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,060.50 : 256,601.30 = 65,879.57 : x
  2. Step 2: Convert to fraction form
    171,060.50/256,601.30 = 65,879.57/x
  3. Step 3: Cross multiply
    171,060.50x = 256,601.30 × 65,879.57
  4. Step 4: Simplify right side
    171,060.50x = 16,904,781,693.04
  5. Step 5: Solve for x
    x = 16,904,781,693.04/171,060.50
  6. Step 6: Final answer
    x = 98,823.41

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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.