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Finding the Fourth Proportional to 123,063.25, 169,827.36 and 66,474.64

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Solution

The fourth proportional to 123,063.25, 169,827.36 and 66,474.64 is: 91,735.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,063.25 : 169,827.36 = 66,474.64 : x
  2. Step 2: Convert to fraction form
    123,063.25/169,827.36 = 66,474.64/x
  3. Step 3: Cross multiply
    123,063.25x = 169,827.36 × 66,474.64
  4. Step 4: Simplify right side
    123,063.25x = 11,289,212,618.15
  5. Step 5: Solve for x
    x = 11,289,212,618.15/123,063.25
  6. Step 6: Final answer
    x = 91,735.04

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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.