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Finding the Fourth Proportional to 69,523.88, 103,391.46 and 67,309.52

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Solution

The fourth proportional to 69,523.88, 103,391.46 and 67,309.52 is: 100,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,523.88 : 103,391.46 = 67,309.52 : x
  2. Step 2: Convert to fraction form
    69,523.88/103,391.46 = 67,309.52/x
  3. Step 3: Cross multiply
    69,523.88x = 103,391.46 × 67,309.52
  4. Step 4: Simplify right side
    69,523.88x = 6,959,229,027.74
  5. Step 5: Solve for x
    x = 6,959,229,027.74/69,523.88
  6. Step 6: Final answer
    x = 100,098.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.