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Finding the Fourth Proportional to 270,040.74, 372,654.45 and 149,189.82

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Solution

The fourth proportional to 270,040.74, 372,654.45 and 149,189.82 is: 205,880.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,040.74 : 372,654.45 = 149,189.82 : x
  2. Step 2: Convert to fraction form
    270,040.74/372,654.45 = 149,189.82/x
  3. Step 3: Cross multiply
    270,040.74x = 372,654.45 × 149,189.82
  4. Step 4: Simplify right side
    270,040.74x = 55,596,250,317.70
  5. Step 5: Solve for x
    x = 55,596,250,317.70/270,040.74
  6. Step 6: Final answer
    x = 205,880.97

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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.