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Finding the Fourth Proportional to 171,611.88, 236,814.68 and 100,003.56

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Solution

The fourth proportional to 171,611.88, 236,814.68 and 100,003.56 is: 137,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,611.88 : 236,814.68 = 100,003.56 : x
  2. Step 2: Convert to fraction form
    171,611.88/236,814.68 = 100,003.56/x
  3. Step 3: Cross multiply
    171,611.88x = 236,814.68 × 100,003.56
  4. Step 4: Simplify right side
    171,611.88x = 23,682,311,060.26
  5. Step 5: Solve for x
    x = 23,682,311,060.26/171,611.88
  6. Step 6: Final answer
    x = 137,999.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.