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Finding the Fourth Proportional to 133,057.60, 199,586.40 and 126,496.60

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Solution

The fourth proportional to 133,057.60, 199,586.40 and 126,496.60 is: 189,744.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,057.60 : 199,586.40 = 126,496.60 : x
  2. Step 2: Convert to fraction form
    133,057.60/199,586.40 = 126,496.60/x
  3. Step 3: Cross multiply
    133,057.60x = 199,586.40 × 126,496.60
  4. Step 4: Simplify right side
    133,057.60x = 25,247,001,006.24
  5. Step 5: Solve for x
    x = 25,247,001,006.24/133,057.60
  6. Step 6: Final answer
    x = 189,744.90

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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.