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Finding the Fourth Proportional to 122,548.63, 169,107 and 68,102.41

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Solution

The fourth proportional to 122,548.63, 169,107 and 68,102.41 is: 93,975.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,548.63 : 169,107 = 68,102.41 : x
  2. Step 2: Convert to fraction form
    122,548.63/169,107 = 68,102.41/x
  3. Step 3: Cross multiply
    122,548.63x = 169,107 × 68,102.41
  4. Step 4: Simplify right side
    122,548.63x = 11,516,594,247.87
  5. Step 5: Solve for x
    x = 11,516,594,247.87/122,548.63
  6. Step 6: Final answer
    x = 93,975.71

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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.