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Finding the Fourth Proportional to 164,391.66, 226,860.53 and 92,786.85

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Solution

The fourth proportional to 164,391.66, 226,860.53 and 92,786.85 is: 128,045.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,391.66 : 226,860.53 = 92,786.85 : x
  2. Step 2: Convert to fraction form
    164,391.66/226,860.53 = 92,786.85/x
  3. Step 3: Cross multiply
    164,391.66x = 226,860.53 × 92,786.85
  4. Step 4: Simplify right side
    164,391.66x = 21,049,673,968.03
  5. Step 5: Solve for x
    x = 21,049,673,968.03/164,391.66
  6. Step 6: Final answer
    x = 128,045.88

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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.