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Finding the Fourth Proportional to 203,601.73, 281,004.11 and 112,986.80

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Solution

The fourth proportional to 203,601.73, 281,004.11 and 112,986.80 is: 155,940.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,601.73 : 281,004.11 = 112,986.80 : x
  2. Step 2: Convert to fraction form
    203,601.73/281,004.11 = 112,986.80/x
  3. Step 3: Cross multiply
    203,601.73x = 281,004.11 × 112,986.80
  4. Step 4: Simplify right side
    203,601.73x = 31,749,754,332.00
  5. Step 5: Solve for x
    x = 31,749,754,332.00/203,601.73
  6. Step 6: Final answer
    x = 155,940.50

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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.