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Finding the Fourth Proportional to 70,441.08, 105,668.15 and 25,473.69

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Solution

The fourth proportional to 70,441.08, 105,668.15 and 25,473.69 is: 38,212.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,441.08 : 105,668.15 = 25,473.69 : x
  2. Step 2: Convert to fraction form
    70,441.08/105,668.15 = 25,473.69/x
  3. Step 3: Cross multiply
    70,441.08x = 105,668.15 × 25,473.69
  4. Step 4: Simplify right side
    70,441.08x = 2,691,757,568.61
  5. Step 5: Solve for x
    x = 2,691,757,568.61/70,441.08
  6. Step 6: Final answer
    x = 38,212.90

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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.