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Finding the Fourth Proportional to 70,789.38, 106,089.72 and 26,371.41

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Solution

The fourth proportional to 70,789.38, 106,089.72 and 26,371.41 is: 39,521.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,789.38 : 106,089.72 = 26,371.41 : x
  2. Step 2: Convert to fraction form
    70,789.38/106,089.72 = 26,371.41/x
  3. Step 3: Cross multiply
    70,789.38x = 106,089.72 × 26,371.41
  4. Step 4: Simplify right side
    70,789.38x = 2,797,735,502.91
  5. Step 5: Solve for x
    x = 2,797,735,502.91/70,789.38
  6. Step 6: Final answer
    x = 39,521.97

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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.