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Finding the Fourth Proportional to 171,771.44, 237,046.92 and 128,674.58

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Solution

The fourth proportional to 171,771.44, 237,046.92 and 128,674.58 is: 177,572.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,771.44 : 237,046.92 = 128,674.58 : x
  2. Step 2: Convert to fraction form
    171,771.44/237,046.92 = 128,674.58/x
  3. Step 3: Cross multiply
    171,771.44x = 237,046.92 × 128,674.58
  4. Step 4: Simplify right side
    171,771.44x = 30,501,912,871.29
  5. Step 5: Solve for x
    x = 30,501,912,871.29/171,771.44
  6. Step 6: Final answer
    x = 177,572.67

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1.5x scale

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.