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Finding the Fourth Proportional to 70,306.64, 96,922.26 and 50,128.52

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Solution

The fourth proportional to 70,306.64, 96,922.26 and 50,128.52 is: 69,105.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,306.64 : 96,922.26 = 50,128.52 : x
  2. Step 2: Convert to fraction form
    70,306.64/96,922.26 = 50,128.52/x
  3. Step 3: Cross multiply
    70,306.64x = 96,922.26 × 50,128.52
  4. Step 4: Simplify right side
    70,306.64x = 4,858,569,448.86
  5. Step 5: Solve for x
    x = 4,858,569,448.86/70,306.64
  6. Step 6: Final answer
    x = 69,105.41

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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.