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Finding the Fourth Proportional to 243,893.05, 336,425.07 and 161,107.54

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Solution

The fourth proportional to 243,893.05, 336,425.07 and 161,107.54 is: 222,231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,893.05 : 336,425.07 = 161,107.54 : x
  2. Step 2: Convert to fraction form
    243,893.05/336,425.07 = 161,107.54/x
  3. Step 3: Cross multiply
    243,893.05x = 336,425.07 × 161,107.54
  4. Step 4: Simplify right side
    243,893.05x = 54,200,615,422.03
  5. Step 5: Solve for x
    x = 54,200,615,422.03/243,893.05
  6. Step 6: Final answer
    x = 222,231.08

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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.