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Finding the Fourth Proportional to 258,794.14, 388,270.44 and 132,523.79

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Solution

The fourth proportional to 258,794.14, 388,270.44 and 132,523.79 is: 198,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,794.14 : 388,270.44 = 132,523.79 : x
  2. Step 2: Convert to fraction form
    258,794.14/388,270.44 = 132,523.79/x
  3. Step 3: Cross multiply
    258,794.14x = 388,270.44 × 132,523.79
  4. Step 4: Simplify right side
    258,794.14x = 51,455,069,031.70
  5. Step 5: Solve for x
    x = 51,455,069,031.70/258,794.14
  6. Step 6: Final answer
    x = 198,826.25

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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.