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Finding the Fourth Proportional to 70,388.92, 105,597.42 and 23,640.04

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Solution

The fourth proportional to 70,388.92, 105,597.42 and 23,640.04 is: 35,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,388.92 : 105,597.42 = 23,640.04 : x
  2. Step 2: Convert to fraction form
    70,388.92/105,597.42 = 23,640.04/x
  3. Step 3: Cross multiply
    70,388.92x = 105,597.42 × 23,640.04
  4. Step 4: Simplify right side
    70,388.92x = 2,496,327,232.70
  5. Step 5: Solve for x
    x = 2,496,327,232.70/70,388.92
  6. Step 6: Final answer
    x = 35,464.78

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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.