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Finding the Fourth Proportional to 119,956, 165,553.86 and 69,655

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Solution

The fourth proportional to 119,956, 165,553.86 and 69,655 is: 96,132.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,956 : 165,553.86 = 69,655 : x
  2. Step 2: Convert to fraction form
    119,956/165,553.86 = 69,655/x
  3. Step 3: Cross multiply
    119,956x = 165,553.86 × 69,655
  4. Step 4: Simplify right side
    119,956x = 11,531,654,118.30
  5. Step 5: Solve for x
    x = 11,531,654,118.30/119,956
  6. Step 6: Final answer
    x = 96,132.37

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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.