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Finding the Fourth Proportional to 122,704.93, 169,263.64 and 73,633.85

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Solution

The fourth proportional to 122,704.93, 169,263.64 and 73,633.85 is: 101,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,704.93 : 169,263.64 = 73,633.85 : x
  2. Step 2: Convert to fraction form
    122,704.93/169,263.64 = 73,633.85/x
  3. Step 3: Cross multiply
    122,704.93x = 169,263.64 × 73,633.85
  4. Step 4: Simplify right side
    122,704.93x = 12,463,532,810.01
  5. Step 5: Solve for x
    x = 12,463,532,810.01/122,704.93
  6. Step 6: Final answer
    x = 101,573.21

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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.