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Finding the Fourth Proportional to 531,455.56, 797,186.22 and 157,481.80

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Solution

The fourth proportional to 531,455.56, 797,186.22 and 157,481.80 is: 236,223.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,455.56 : 797,186.22 = 157,481.80 : x
  2. Step 2: Convert to fraction form
    531,455.56/797,186.22 = 157,481.80/x
  3. Step 3: Cross multiply
    531,455.56x = 797,186.22 × 157,481.80
  4. Step 4: Simplify right side
    531,455.56x = 125,542,320,860.80
  5. Step 5: Solve for x
    x = 125,542,320,860.80/531,455.56
  6. Step 6: Final answer
    x = 236,223.55

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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.