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Finding the Fourth Proportional to 274,617.90, 411,466.05 and 134,073.90

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Solution

The fourth proportional to 274,617.90, 411,466.05 and 134,073.90 is: 200,885.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,617.90 : 411,466.05 = 134,073.90 : x
  2. Step 2: Convert to fraction form
    274,617.90/411,466.05 = 134,073.90/x
  3. Step 3: Cross multiply
    274,617.90x = 411,466.05 × 134,073.90
  4. Step 4: Simplify right side
    274,617.90x = 55,166,858,041.10
  5. Step 5: Solve for x
    x = 55,166,858,041.10/274,617.90
  6. Step 6: Final answer
    x = 200,885.88

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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.