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Finding the Fourth Proportional to 165,808.73, 248,761.52 and 53,486.45

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Solution

The fourth proportional to 165,808.73, 248,761.52 and 53,486.45 is: 80,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,808.73 : 248,761.52 = 53,486.45 : x
  2. Step 2: Convert to fraction form
    165,808.73/248,761.52 = 53,486.45/x
  3. Step 3: Cross multiply
    165,808.73x = 248,761.52 × 53,486.45
  4. Step 4: Simplify right side
    165,808.73x = 13,305,370,601.40
  5. Step 5: Solve for x
    x = 13,305,370,601.40/165,808.73
  6. Step 6: Final answer
    x = 80,245.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.