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Finding the Fourth Proportional to 171,040.80, 256,172.40 and 87,837.60

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Solution

The fourth proportional to 171,040.80, 256,172.40 and 87,837.60 is: 131,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,040.80 : 256,172.40 = 87,837.60 : x
  2. Step 2: Convert to fraction form
    171,040.80/256,172.40 = 87,837.60/x
  3. Step 3: Cross multiply
    171,040.80x = 256,172.40 × 87,837.60
  4. Step 4: Simplify right side
    171,040.80x = 22,501,568,802.24
  5. Step 5: Solve for x
    x = 22,501,568,802.24/171,040.80
  6. Step 6: Final answer
    x = 131,556.73

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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.