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Finding the Fourth Proportional to 115,083.37, 158,770.90 and 84,940.44

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Solution

The fourth proportional to 115,083.37, 158,770.90 and 84,940.44 is: 117,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,083.37 : 158,770.90 = 84,940.44 : x
  2. Step 2: Convert to fraction form
    115,083.37/158,770.90 = 84,940.44/x
  3. Step 3: Cross multiply
    115,083.37x = 158,770.90 × 84,940.44
  4. Step 4: Simplify right side
    115,083.37x = 13,486,070,105.20
  5. Step 5: Solve for x
    x = 13,486,070,105.20/115,083.37
  6. Step 6: Final answer
    x = 117,185.22

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1.5x scale

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.