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Finding the Fourth Proportional to 222,181.52, 306,291.54 and 158,408.60

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Solution

The fourth proportional to 222,181.52, 306,291.54 and 158,408.60 is: 218,376.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,181.52 : 306,291.54 = 158,408.60 : x
  2. Step 2: Convert to fraction form
    222,181.52/306,291.54 = 158,408.60/x
  3. Step 3: Cross multiply
    222,181.52x = 306,291.54 × 158,408.60
  4. Step 4: Simplify right side
    222,181.52x = 48,519,214,043.24
  5. Step 5: Solve for x
    x = 48,519,214,043.24/222,181.52
  6. Step 6: Final answer
    x = 218,376.46

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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.