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Finding the Fourth Proportional to 119,854.45, 165,427.45 and 68,896.74

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Solution

The fourth proportional to 119,854.45, 165,427.45 and 68,896.74 is: 95,093.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,854.45 : 165,427.45 = 68,896.74 : x
  2. Step 2: Convert to fraction form
    119,854.45/165,427.45 = 68,896.74/x
  3. Step 3: Cross multiply
    119,854.45x = 165,427.45 × 68,896.74
  4. Step 4: Simplify right side
    119,854.45x = 11,397,412,750.28
  5. Step 5: Solve for x
    x = 11,397,412,750.28/119,854.45
  6. Step 6: Final answer
    x = 95,093.78

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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.