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Finding the Fourth Proportional to 165,808.85, 248,761.71 and 53,486.58

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Solution

The fourth proportional to 165,808.85, 248,761.71 and 53,486.58 is: 80,245.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,808.85 : 248,761.71 = 53,486.58 : x
  2. Step 2: Convert to fraction form
    165,808.85/248,761.71 = 53,486.58/x
  3. Step 3: Cross multiply
    165,808.85x = 248,761.71 × 53,486.58
  4. Step 4: Simplify right side
    165,808.85x = 13,305,413,102.85
  5. Step 5: Solve for x
    x = 13,305,413,102.85/165,808.85
  6. Step 6: Final answer
    x = 80,245.49

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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.