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Finding the Fourth Proportional to 70,529.92, 105,813.11 and 26,169.33

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Solution

The fourth proportional to 70,529.92, 105,813.11 and 26,169.33 is: 39,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,529.92 : 105,813.11 = 26,169.33 : x
  2. Step 2: Convert to fraction form
    70,529.92/105,813.11 = 26,169.33/x
  3. Step 3: Cross multiply
    70,529.92x = 105,813.11 × 26,169.33
  4. Step 4: Simplify right side
    70,529.92x = 2,769,057,534.00
  5. Step 5: Solve for x
    x = 2,769,057,534.00/70,529.92
  6. Step 6: Final answer
    x = 39,260.75

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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.