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Finding the Fourth Proportional to 171,606.54, 236,676.62 and 120,787.50

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Solution

The fourth proportional to 171,606.54, 236,676.62 and 120,787.50 is: 166,587.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,606.54 : 236,676.62 = 120,787.50 : x
  2. Step 2: Convert to fraction form
    171,606.54/236,676.62 = 120,787.50/x
  3. Step 3: Cross multiply
    171,606.54x = 236,676.62 × 120,787.50
  4. Step 4: Simplify right side
    171,606.54x = 28,587,577,540.22
  5. Step 5: Solve for x
    x = 28,587,577,540.22/171,606.54
  6. Step 6: Final answer
    x = 166,587.93

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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.