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Finding the Fourth Proportional to 109,768.85, 151,469.42 and 62,012.97

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Solution

The fourth proportional to 109,768.85, 151,469.42 and 62,012.97 is: 85,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,768.85 : 151,469.42 = 62,012.97 : x
  2. Step 2: Convert to fraction form
    109,768.85/151,469.42 = 62,012.97/x
  3. Step 3: Cross multiply
    109,768.85x = 151,469.42 × 62,012.97
  4. Step 4: Simplify right side
    109,768.85x = 9,393,068,288.31
  5. Step 5: Solve for x
    x = 9,393,068,288.31/109,768.85
  6. Step 6: Final answer
    x = 85,571.35

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1.5x scale

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.