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Finding the Fourth Proportional to 123,936.70, 171,032.32 and 67,348.07

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Solution

The fourth proportional to 123,936.70, 171,032.32 and 67,348.07 is: 92,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,936.70 : 171,032.32 = 67,348.07 : x
  2. Step 2: Convert to fraction form
    123,936.70/171,032.32 = 67,348.07/x
  3. Step 3: Cross multiply
    123,936.70x = 171,032.32 × 67,348.07
  4. Step 4: Simplify right side
    123,936.70x = 11,518,696,659.62
  5. Step 5: Solve for x
    x = 11,518,696,659.62/123,936.70
  6. Step 6: Final answer
    x = 92,940.16

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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.