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Finding the Fourth Proportional to 122,069, 168,441.04 and 71,092.87

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Solution

The fourth proportional to 122,069, 168,441.04 and 71,092.87 is: 98,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,069 : 168,441.04 = 71,092.87 : x
  2. Step 2: Convert to fraction form
    122,069/168,441.04 = 71,092.87/x
  3. Step 3: Cross multiply
    122,069x = 168,441.04 × 71,092.87
  4. Step 4: Simplify right side
    122,069x = 11,974,956,959.38
  5. Step 5: Solve for x
    x = 11,974,956,959.38/122,069
  6. Step 6: Final answer
    x = 98,099.90

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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.