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Finding the Fourth Proportional to 70,250.98, 105,327.18 and 25,872.04

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Solution

The fourth proportional to 70,250.98, 105,327.18 and 25,872.04 is: 38,789.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,250.98 : 105,327.18 = 25,872.04 : x
  2. Step 2: Convert to fraction form
    70,250.98/105,327.18 = 25,872.04/x
  3. Step 3: Cross multiply
    70,250.98x = 105,327.18 × 25,872.04
  4. Step 4: Simplify right side
    70,250.98x = 2,725,029,014.05
  5. Step 5: Solve for x
    x = 2,725,029,014.05/70,250.98
  6. Step 6: Final answer
    x = 38,789.91

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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.