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Finding the Fourth Proportional to 171,606.35, 236,676.35 and 120,787.31

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Solution

The fourth proportional to 171,606.35, 236,676.35 and 120,787.31 is: 166,587.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,606.35 : 236,676.35 = 120,787.31 : x
  2. Step 2: Convert to fraction form
    171,606.35/236,676.35 = 120,787.31/x
  3. Step 3: Cross multiply
    171,606.35x = 236,676.35 × 120,787.31
  4. Step 4: Simplify right side
    171,606.35x = 28,587,500,550.78
  5. Step 5: Solve for x
    x = 28,587,500,550.78/171,606.35
  6. Step 6: Final answer
    x = 166,587.66

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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.