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Finding the Fourth Proportional to 440,190.34, 660,093.22 and 155,786.40

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Solution

The fourth proportional to 440,190.34, 660,093.22 and 155,786.40 is: 233,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,190.34 : 660,093.22 = 155,786.40 : x
  2. Step 2: Convert to fraction form
    440,190.34/660,093.22 = 155,786.40/x
  3. Step 3: Cross multiply
    440,190.34x = 660,093.22 × 155,786.40
  4. Step 4: Simplify right side
    440,190.34x = 102,833,546,408.21
  5. Step 5: Solve for x
    x = 102,833,546,408.21/440,190.34
  6. Step 6: Final answer
    x = 233,611.55

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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.