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Finding the Fourth Proportional to 270,221.32, 372,885.69 and 149,355.82

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Solution

The fourth proportional to 270,221.32, 372,885.69 and 149,355.82 is: 206,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,221.32 : 372,885.69 = 149,355.82 : x
  2. Step 2: Convert to fraction form
    270,221.32/372,885.69 = 149,355.82/x
  3. Step 3: Cross multiply
    270,221.32x = 372,885.69 × 149,355.82
  4. Step 4: Simplify right side
    270,221.32x = 55,692,647,996.22
  5. Step 5: Solve for x
    x = 55,692,647,996.22/270,221.32
  6. Step 6: Final answer
    x = 206,100.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.