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Finding the Fourth Proportional to 352,493.22, 528,627.87 and 115,780.80

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Solution

The fourth proportional to 352,493.22, 528,627.87 and 115,780.80 is: 173,634.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,493.22 : 528,627.87 = 115,780.80 : x
  2. Step 2: Convert to fraction form
    352,493.22/528,627.87 = 115,780.80/x
  3. Step 3: Cross multiply
    352,493.22x = 528,627.87 × 115,780.80
  4. Step 4: Simplify right side
    352,493.22x = 61,204,957,690.90
  5. Step 5: Solve for x
    x = 61,204,957,690.90/352,493.22
  6. Step 6: Final answer
    x = 173,634.43

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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.