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Finding the Fourth Proportional to 162,674.97, 244,170 and 78,494.33

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Solution

The fourth proportional to 162,674.97, 244,170 and 78,494.33 is: 117,817.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,674.97 : 244,170 = 78,494.33 : x
  2. Step 2: Convert to fraction form
    162,674.97/244,170 = 78,494.33/x
  3. Step 3: Cross multiply
    162,674.97x = 244,170 × 78,494.33
  4. Step 4: Simplify right side
    162,674.97x = 19,165,959,335.25
  5. Step 5: Solve for x
    x = 19,165,959,335.25/162,674.97
  6. Step 6: Final answer
    x = 117,817.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.