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Finding the Fourth Proportional to 118,876.21, 164,065.97 and 73,568.79

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Solution

The fourth proportional to 118,876.21, 164,065.97 and 73,568.79 is: 101,535.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,876.21 : 164,065.97 = 73,568.79 : x
  2. Step 2: Convert to fraction form
    118,876.21/164,065.97 = 73,568.79/x
  3. Step 3: Cross multiply
    118,876.21x = 164,065.97 × 73,568.79
  4. Step 4: Simplify right side
    118,876.21x = 12,070,135,077.00
  5. Step 5: Solve for x
    x = 12,070,135,077.00/118,876.21
  6. Step 6: Final answer
    x = 101,535.33

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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.