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Finding the Fourth Proportional to 70,768.59, 106,170.71 and 26,396.79

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Solution

The fourth proportional to 70,768.59, 106,170.71 and 26,396.79 is: 39,601.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,768.59 : 106,170.71 = 26,396.79 : x
  2. Step 2: Convert to fraction form
    70,768.59/106,170.71 = 26,396.79/x
  3. Step 3: Cross multiply
    70,768.59x = 106,170.71 × 26,396.79
  4. Step 4: Simplify right side
    70,768.59x = 2,802,565,936.02
  5. Step 5: Solve for x
    x = 2,802,565,936.02/70,768.59
  6. Step 6: Final answer
    x = 39,601.83

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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.