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Finding the Fourth Proportional to 133,412.80, 200,232.60 and 54,583.60

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Solution

The fourth proportional to 133,412.80, 200,232.60 and 54,583.60 is: 81,921.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,412.80 : 200,232.60 = 54,583.60 : x
  2. Step 2: Convert to fraction form
    133,412.80/200,232.60 = 54,583.60/x
  3. Step 3: Cross multiply
    133,412.80x = 200,232.60 × 54,583.60
  4. Step 4: Simplify right side
    133,412.80x = 10,929,416,145.36
  5. Step 5: Solve for x
    x = 10,929,416,145.36/133,412.80
  6. Step 6: Final answer
    x = 81,921.80

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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.