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Finding the Fourth Proportional to 70,535.89, 105,845.21 and 26,193.43

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Solution

The fourth proportional to 70,535.89, 105,845.21 and 26,193.43 is: 39,305.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,535.89 : 105,845.21 = 26,193.43 : x
  2. Step 2: Convert to fraction form
    70,535.89/105,845.21 = 26,193.43/x
  3. Step 3: Cross multiply
    70,535.89x = 105,845.21 × 26,193.43
  4. Step 4: Simplify right side
    70,535.89x = 2,772,449,098.97
  5. Step 5: Solve for x
    x = 2,772,449,098.97/70,535.89
  6. Step 6: Final answer
    x = 39,305.51

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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.