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Finding the Fourth Proportional to 264,971.70, 397,540.26 and 87,603.30

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Solution

The fourth proportional to 264,971.70, 397,540.26 and 87,603.30 is: 131,432.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,971.70 : 397,540.26 = 87,603.30 : x
  2. Step 2: Convert to fraction form
    264,971.70/397,540.26 = 87,603.30/x
  3. Step 3: Cross multiply
    264,971.70x = 397,540.26 × 87,603.30
  4. Step 4: Simplify right side
    264,971.70x = 34,825,838,658.86
  5. Step 5: Solve for x
    x = 34,825,838,658.86/264,971.70
  6. Step 6: Final answer
    x = 131,432.30

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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.