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Finding the Fourth Proportional to 61,782.52, 85,196.22 and 52,859.56

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Solution

The fourth proportional to 61,782.52, 85,196.22 and 52,859.56 is: 72,891.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,782.52 : 85,196.22 = 52,859.56 : x
  2. Step 2: Convert to fraction form
    61,782.52/85,196.22 = 52,859.56/x
  3. Step 3: Cross multiply
    61,782.52x = 85,196.22 × 52,859.56
  4. Step 4: Simplify right side
    61,782.52x = 4,503,434,702.86
  5. Step 5: Solve for x
    x = 4,503,434,702.86/61,782.52
  6. Step 6: Final answer
    x = 72,891.73

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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.