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Finding the Fourth Proportional to 147,841.62, 204,021.41 and 79,858.60

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Solution

The fourth proportional to 147,841.62, 204,021.41 and 79,858.60 is: 110,204.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,841.62 : 204,021.41 = 79,858.60 : x
  2. Step 2: Convert to fraction form
    147,841.62/204,021.41 = 79,858.60/x
  3. Step 3: Cross multiply
    147,841.62x = 204,021.41 × 79,858.60
  4. Step 4: Simplify right side
    147,841.62x = 16,292,864,361.16
  5. Step 5: Solve for x
    x = 16,292,864,361.16/147,841.62
  6. Step 6: Final answer
    x = 110,204.85

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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.