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Finding the Fourth Proportional to 492,276.90, 738,415.26 and 118,299.90

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Solution

The fourth proportional to 492,276.90, 738,415.26 and 118,299.90 is: 177,449.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,276.90 : 738,415.26 = 118,299.90 : x
  2. Step 2: Convert to fraction form
    492,276.90/738,415.26 = 118,299.90/x
  3. Step 3: Cross multiply
    492,276.90x = 738,415.26 × 118,299.90
  4. Step 4: Simplify right side
    492,276.90x = 87,354,451,416.47
  5. Step 5: Solve for x
    x = 87,354,451,416.47/492,276.90
  6. Step 6: Final answer
    x = 177,449.83

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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.