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Finding the Fourth Proportional to 122,788.94, 169,448.46 and 69,073.95

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Solution

The fourth proportional to 122,788.94, 169,448.46 and 69,073.95 is: 95,321.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,788.94 : 169,448.46 = 69,073.95 : x
  2. Step 2: Convert to fraction form
    122,788.94/169,448.46 = 69,073.95/x
  3. Step 3: Cross multiply
    122,788.94x = 169,448.46 × 69,073.95
  4. Step 4: Simplify right side
    122,788.94x = 11,704,474,453.62
  5. Step 5: Solve for x
    x = 11,704,474,453.62/122,788.94
  6. Step 6: Final answer
    x = 95,321.90

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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.