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Finding the Fourth Proportional to 171,338.56, 236,571.94 and 137,533.01

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Solution

The fourth proportional to 171,338.56, 236,571.94 and 137,533.01 is: 189,895.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,338.56 : 236,571.94 = 137,533.01 : x
  2. Step 2: Convert to fraction form
    171,338.56/236,571.94 = 137,533.01/x
  3. Step 3: Cross multiply
    171,338.56x = 236,571.94 × 137,533.01
  4. Step 4: Simplify right side
    171,338.56x = 32,536,449,978.80
  5. Step 5: Solve for x
    x = 32,536,449,978.80/171,338.56
  6. Step 6: Final answer
    x = 189,895.67

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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.