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Finding the Fourth Proportional to 133,321.80, 200,092.05 and 128,947.80

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Solution

The fourth proportional to 133,321.80, 200,092.05 and 128,947.80 is: 193,527.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,321.80 : 200,092.05 = 128,947.80 : x
  2. Step 2: Convert to fraction form
    133,321.80/200,092.05 = 128,947.80/x
  3. Step 3: Cross multiply
    133,321.80x = 200,092.05 × 128,947.80
  4. Step 4: Simplify right side
    133,321.80x = 25,801,429,644.99
  5. Step 5: Solve for x
    x = 25,801,429,644.99/133,321.80
  6. Step 6: Final answer
    x = 193,527.46

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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.