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Finding the Fourth Proportional to 481,207.70, 721,876.35 and 165,761.30

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Solution

The fourth proportional to 481,207.70, 721,876.35 and 165,761.30 is: 248,664.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,207.70 : 721,876.35 = 165,761.30 : x
  2. Step 2: Convert to fraction form
    481,207.70/721,876.35 = 165,761.30/x
  3. Step 3: Cross multiply
    481,207.70x = 721,876.35 × 165,761.30
  4. Step 4: Simplify right side
    481,207.70x = 119,659,162,215.26
  5. Step 5: Solve for x
    x = 119,659,162,215.26/481,207.70
  6. Step 6: Final answer
    x = 248,664.27

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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.