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Finding the Fourth Proportional to 70,474.55, 105,709.77 and 26,100.32

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Solution

The fourth proportional to 70,474.55, 105,709.77 and 26,100.32 is: 39,149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,474.55 : 105,709.77 = 26,100.32 : x
  2. Step 2: Convert to fraction form
    70,474.55/105,709.77 = 26,100.32/x
  3. Step 3: Cross multiply
    70,474.55x = 105,709.77 × 26,100.32
  4. Step 4: Simplify right side
    70,474.55x = 2,759,058,295.58
  5. Step 5: Solve for x
    x = 2,759,058,295.58/70,474.55
  6. Step 6: Final answer
    x = 39,149.71

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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.