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Finding the Fourth Proportional to 70,376.52, 105,550.19 and 25,972.92

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Solution

The fourth proportional to 70,376.52, 105,550.19 and 25,972.92 is: 38,954.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,376.52 : 105,550.19 = 25,972.92 : x
  2. Step 2: Convert to fraction form
    70,376.52/105,550.19 = 25,972.92/x
  3. Step 3: Cross multiply
    70,376.52x = 105,550.19 × 25,972.92
  4. Step 4: Simplify right side
    70,376.52x = 2,741,446,640.85
  5. Step 5: Solve for x
    x = 2,741,446,640.85/70,376.52
  6. Step 6: Final answer
    x = 38,954.00

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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.