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Finding the Fourth Proportional to 133,355.40, 200,033.10 and 127,231.80

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Solution

The fourth proportional to 133,355.40, 200,033.10 and 127,231.80 is: 190,847.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,355.40 : 200,033.10 = 127,231.80 : x
  2. Step 2: Convert to fraction form
    133,355.40/200,033.10 = 127,231.80/x
  3. Step 3: Cross multiply
    133,355.40x = 200,033.10 × 127,231.80
  4. Step 4: Simplify right side
    133,355.40x = 25,450,571,372.58
  5. Step 5: Solve for x
    x = 25,450,571,372.58/133,355.40
  6. Step 6: Final answer
    x = 190,847.70

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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.