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Finding the Fourth Proportional to 171,190.70, 256,846.80 and 76,412.24

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Solution

The fourth proportional to 171,190.70, 256,846.80 and 76,412.24 is: 114,645.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,190.70 : 256,846.80 = 76,412.24 : x
  2. Step 2: Convert to fraction form
    171,190.70/256,846.80 = 76,412.24/x
  3. Step 3: Cross multiply
    171,190.70x = 256,846.80 × 76,412.24
  4. Step 4: Simplify right side
    171,190.70x = 19,626,239,324.83
  5. Step 5: Solve for x
    x = 19,626,239,324.83/171,190.70
  6. Step 6: Final answer
    x = 114,645.48

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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.