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Finding the Fourth Proportional to 492,553.80, 738,830.70 and 118,576.80

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Solution

The fourth proportional to 492,553.80, 738,830.70 and 118,576.80 is: 177,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,553.80 : 738,830.70 = 118,576.80 : x
  2. Step 2: Convert to fraction form
    492,553.80/738,830.70 = 118,576.80/x
  3. Step 3: Cross multiply
    492,553.80x = 738,830.70 × 118,576.80
  4. Step 4: Simplify right side
    492,553.80x = 87,608,180,147.76
  5. Step 5: Solve for x
    x = 87,608,180,147.76/492,553.80
  6. Step 6: Final answer
    x = 177,865.20

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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.