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Finding the Fourth Proportional to 164,267.78, 226,689.08 and 91,669.89

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Solution

The fourth proportional to 164,267.78, 226,689.08 and 91,669.89 is: 126,504.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,267.78 : 226,689.08 = 91,669.89 : x
  2. Step 2: Convert to fraction form
    164,267.78/226,689.08 = 91,669.89/x
  3. Step 3: Cross multiply
    164,267.78x = 226,689.08 × 91,669.89
  4. Step 4: Simplify right side
    164,267.78x = 20,780,562,660.05
  5. Step 5: Solve for x
    x = 20,780,562,660.05/164,267.78
  6. Step 6: Final answer
    x = 126,504.20

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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.