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Finding the Fourth Proportional to 119,594.34, 165,040.38 and 65,879.58

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Solution

The fourth proportional to 119,594.34, 165,040.38 and 65,879.58 is: 90,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,594.34 : 165,040.38 = 65,879.58 : x
  2. Step 2: Convert to fraction form
    119,594.34/165,040.38 = 65,879.58/x
  3. Step 3: Cross multiply
    119,594.34x = 165,040.38 × 65,879.58
  4. Step 4: Simplify right side
    119,594.34x = 10,872,790,917.44
  5. Step 5: Solve for x
    x = 10,872,790,917.44/119,594.34
  6. Step 6: Final answer
    x = 90,913.93

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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.