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Finding the Fourth Proportional to 123,063, 169,827.01 and 66,474.38

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Solution

The fourth proportional to 123,063, 169,827.01 and 66,474.38 is: 91,734.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,063 : 169,827.01 = 66,474.38 : x
  2. Step 2: Convert to fraction form
    123,063/169,827.01 = 66,474.38/x
  3. Step 3: Cross multiply
    123,063x = 169,827.01 × 66,474.38
  4. Step 4: Simplify right side
    123,063x = 11,289,145,197.00
  5. Step 5: Solve for x
    x = 11,289,145,197.00/123,063
  6. Step 6: Final answer
    x = 91,734.68

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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.