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Finding the Fourth Proportional to 123,956.73, 171,060.21 and 67,368.09

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Solution

The fourth proportional to 123,956.73, 171,060.21 and 67,368.09 is: 92,967.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,956.73 : 171,060.21 = 67,368.09 : x
  2. Step 2: Convert to fraction form
    123,956.73/171,060.21 = 67,368.09/x
  3. Step 3: Cross multiply
    123,956.73x = 171,060.21 × 67,368.09
  4. Step 4: Simplify right side
    123,956.73x = 11,523,999,622.70
  5. Step 5: Solve for x
    x = 11,523,999,622.70/123,956.73
  6. Step 6: Final answer
    x = 92,967.92

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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.