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Finding the Fourth Proportional to 123,951.57, 171,053.07 and 67,362.94

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Solution

The fourth proportional to 123,951.57, 171,053.07 and 67,362.94 is: 92,960.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,951.57 : 171,053.07 = 67,362.94 : x
  2. Step 2: Convert to fraction form
    123,951.57/171,053.07 = 67,362.94/x
  3. Step 3: Cross multiply
    123,951.57x = 171,053.07 × 67,362.94
  4. Step 4: Simplify right side
    123,951.57x = 11,522,637,652.43
  5. Step 5: Solve for x
    x = 11,522,637,652.43/123,951.57
  6. Step 6: Final answer
    x = 92,960.81

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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.