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Finding the Fourth Proportional to 123,044.52, 169,801.44 and 66,455.88

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Solution

The fourth proportional to 123,044.52, 169,801.44 and 66,455.88 is: 91,709.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,044.52 : 169,801.44 = 66,455.88 : x
  2. Step 2: Convert to fraction form
    123,044.52/169,801.44 = 66,455.88/x
  3. Step 3: Cross multiply
    123,044.52x = 169,801.44 × 66,455.88
  4. Step 4: Simplify right side
    123,044.52x = 11,284,304,120.47
  5. Step 5: Solve for x
    x = 11,284,304,120.47/123,044.52
  6. Step 6: Final answer
    x = 91,709.12

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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.