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Finding the Fourth Proportional to 171,158.06, 256,797.90 and 76,379.62

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Solution

The fourth proportional to 171,158.06, 256,797.90 and 76,379.62 is: 114,596.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,158.06 : 256,797.90 = 76,379.62 : x
  2. Step 2: Convert to fraction form
    171,158.06/256,797.90 = 76,379.62/x
  3. Step 3: Cross multiply
    171,158.06x = 256,797.90 × 76,379.62
  4. Step 4: Simplify right side
    171,158.06x = 19,614,126,018.80
  5. Step 5: Solve for x
    x = 19,614,126,018.80/171,158.06
  6. Step 6: Final answer
    x = 114,596.57

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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.