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Finding the Fourth Proportional to 123,588.56, 170,551.30 and 69,873.44

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Solution

The fourth proportional to 123,588.56, 170,551.30 and 69,873.44 is: 96,424.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,588.56 : 170,551.30 = 69,873.44 : x
  2. Step 2: Convert to fraction form
    123,588.56/170,551.30 = 69,873.44/x
  3. Step 3: Cross multiply
    123,588.56x = 170,551.30 × 69,873.44
  4. Step 4: Simplify right side
    123,588.56x = 11,917,006,027.47
  5. Step 5: Solve for x
    x = 11,917,006,027.47/123,588.56
  6. Step 6: Final answer
    x = 96,424.83

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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.