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Finding the Fourth Proportional to 275,455.60, 413,086.20 and 97,968.40

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Solution

The fourth proportional to 275,455.60, 413,086.20 and 97,968.40 is: 146,918.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,455.60 : 413,086.20 = 97,968.40 : x
  2. Step 2: Convert to fraction form
    275,455.60/413,086.20 = 97,968.40/x
  3. Step 3: Cross multiply
    275,455.60x = 413,086.20 × 97,968.40
  4. Step 4: Simplify right side
    275,455.60x = 40,469,394,076.08
  5. Step 5: Solve for x
    x = 40,469,394,076.08/275,455.60
  6. Step 6: Final answer
    x = 146,918.03

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1.5x scale

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.