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Finding the Fourth Proportional to 122,573.94, 169,156.44 and 68,857.80

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Solution

The fourth proportional to 122,573.94, 169,156.44 and 68,857.80 is: 95,026.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,573.94 : 169,156.44 = 68,857.80 : x
  2. Step 2: Convert to fraction form
    122,573.94/169,156.44 = 68,857.80/x
  3. Step 3: Cross multiply
    122,573.94x = 169,156.44 × 68,857.80
  4. Step 4: Simplify right side
    122,573.94x = 11,647,740,314.23
  5. Step 5: Solve for x
    x = 11,647,740,314.23/122,573.94
  6. Step 6: Final answer
    x = 95,026.24

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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.