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Finding the Fourth Proportional to 78,883.97, 118,255.48 and 34,475.56

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Solution

The fourth proportional to 78,883.97, 118,255.48 and 34,475.56 is: 51,682.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,883.97 : 118,255.48 = 34,475.56 : x
  2. Step 2: Convert to fraction form
    78,883.97/118,255.48 = 34,475.56/x
  3. Step 3: Cross multiply
    78,883.97x = 118,255.48 × 34,475.56
  4. Step 4: Simplify right side
    78,883.97x = 4,076,923,514.24
  5. Step 5: Solve for x
    x = 4,076,923,514.24/78,883.97
  6. Step 6: Final answer
    x = 51,682.54

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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.