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Finding the Fourth Proportional to 122,996.87, 169,736.27 and 69,282.93

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Solution

The fourth proportional to 122,996.87, 169,736.27 and 69,282.93 is: 95,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,996.87 : 169,736.27 = 69,282.93 : x
  2. Step 2: Convert to fraction form
    122,996.87/169,736.27 = 69,282.93/x
  3. Step 3: Cross multiply
    122,996.87x = 169,736.27 × 69,282.93
  4. Step 4: Simplify right side
    122,996.87x = 11,759,826,112.87
  5. Step 5: Solve for x
    x = 11,759,826,112.87/122,996.87
  6. Step 6: Final answer
    x = 95,610.78

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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.