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Finding the Fourth Proportional to 167,628.80, 251,443.20 and 161,177.60

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Solution

The fourth proportional to 167,628.80, 251,443.20 and 161,177.60 is: 241,766.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,628.80 : 251,443.20 = 161,177.60 : x
  2. Step 2: Convert to fraction form
    167,628.80/251,443.20 = 161,177.60/x
  3. Step 3: Cross multiply
    167,628.80x = 251,443.20 × 161,177.60
  4. Step 4: Simplify right side
    167,628.80x = 40,527,011,512.32
  5. Step 5: Solve for x
    x = 40,527,011,512.32/167,628.80
  6. Step 6: Final answer
    x = 241,766.40

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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.