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Finding the Fourth Proportional to 119,676.56, 165,152.74 and 65,961.68

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Solution

The fourth proportional to 119,676.56, 165,152.74 and 65,961.68 is: 91,026.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,676.56 : 165,152.74 = 65,961.68 : x
  2. Step 2: Convert to fraction form
    119,676.56/165,152.74 = 65,961.68/x
  3. Step 3: Cross multiply
    119,676.56x = 165,152.74 × 65,961.68
  4. Step 4: Simplify right side
    119,676.56x = 10,893,752,187.00
  5. Step 5: Solve for x
    x = 10,893,752,187.00/119,676.56
  6. Step 6: Final answer
    x = 91,026.62

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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.