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Finding the Fourth Proportional to 123,954.36, 171,052.20 and 67,364.52

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Solution

The fourth proportional to 123,954.36, 171,052.20 and 67,364.52 is: 92,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,954.36 : 171,052.20 = 67,364.52 : x
  2. Step 2: Convert to fraction form
    123,954.36/171,052.20 = 67,364.52/x
  3. Step 3: Cross multiply
    123,954.36x = 171,052.20 × 67,364.52
  4. Step 4: Simplify right side
    123,954.36x = 11,522,849,347.94
  5. Step 5: Solve for x
    x = 11,522,849,347.94/123,954.36
  6. Step 6: Final answer
    x = 92,960.42

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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.