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Finding the Fourth Proportional to 123,590.73, 170,553.42 and 69,873.96

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Solution

The fourth proportional to 123,590.73, 170,553.42 and 69,873.96 is: 96,425.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,590.73 : 170,553.42 = 69,873.96 : x
  2. Step 2: Convert to fraction form
    123,590.73/170,553.42 = 69,873.96/x
  3. Step 3: Cross multiply
    123,590.73x = 170,553.42 × 69,873.96
  4. Step 4: Simplify right side
    123,590.73x = 11,917,242,846.94
  5. Step 5: Solve for x
    x = 11,917,242,846.94/123,590.73
  6. Step 6: Final answer
    x = 96,425.05

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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.