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Finding the Fourth Proportional to 321,310.08, 481,458.18 and 118,627.47

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Solution

The fourth proportional to 321,310.08, 481,458.18 and 118,627.47 is: 177,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,310.08 : 481,458.18 = 118,627.47 : x
  2. Step 2: Convert to fraction form
    321,310.08/481,458.18 = 118,627.47/x
  3. Step 3: Cross multiply
    321,310.08x = 481,458.18 × 118,627.47
  4. Step 4: Simplify right side
    321,310.08x = 57,114,165,804.20
  5. Step 5: Solve for x
    x = 57,114,165,804.20/321,310.08
  6. Step 6: Final answer
    x = 177,754.04

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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.