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Finding the Fourth Proportional to 133,197.16, 199,795 and 54,311.08

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Solution

The fourth proportional to 133,197.16, 199,795 and 54,311.08 is: 81,466.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,197.16 : 199,795 = 54,311.08 : x
  2. Step 2: Convert to fraction form
    133,197.16/199,795 = 54,311.08/x
  3. Step 3: Cross multiply
    133,197.16x = 199,795 × 54,311.08
  4. Step 4: Simplify right side
    133,197.16x = 10,851,082,228.60
  5. Step 5: Solve for x
    x = 10,851,082,228.60/133,197.16
  6. Step 6: Final answer
    x = 81,466.32

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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.