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Finding the Fourth Proportional to 133,986.76, 200,911.02 and 55,086.28

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Solution

The fourth proportional to 133,986.76, 200,911.02 and 55,086.28 is: 82,601.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,986.76 : 200,911.02 = 55,086.28 : x
  2. Step 2: Convert to fraction form
    133,986.76/200,911.02 = 55,086.28/x
  3. Step 3: Cross multiply
    133,986.76x = 200,911.02 × 55,086.28
  4. Step 4: Simplify right side
    133,986.76x = 11,067,440,702.81
  5. Step 5: Solve for x
    x = 11,067,440,702.81/133,986.76
  6. Step 6: Final answer
    x = 82,601.00

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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.