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Finding the Fourth Proportional to 492,112.80, 738,169.20 and 176,601.60

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Solution

The fourth proportional to 492,112.80, 738,169.20 and 176,601.60 is: 264,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,112.80 : 738,169.20 = 176,601.60 : x
  2. Step 2: Convert to fraction form
    492,112.80/738,169.20 = 176,601.60/x
  3. Step 3: Cross multiply
    492,112.80x = 738,169.20 × 176,601.60
  4. Step 4: Simplify right side
    492,112.80x = 130,361,861,790.72
  5. Step 5: Solve for x
    x = 130,361,861,790.72/492,112.80
  6. Step 6: Final answer
    x = 264,902.40

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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.