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Finding the Fourth Proportional to 71,895.80, 107,891.69 and 25,148.67

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Solution

The fourth proportional to 71,895.80, 107,891.69 and 25,148.67 is: 37,739.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,895.80 : 107,891.69 = 25,148.67 : x
  2. Step 2: Convert to fraction form
    71,895.80/107,891.69 = 25,148.67/x
  3. Step 3: Cross multiply
    71,895.80x = 107,891.69 × 25,148.67
  4. Step 4: Simplify right side
    71,895.80x = 2,713,332,381.81
  5. Step 5: Solve for x
    x = 2,713,332,381.81/71,895.80
  6. Step 6: Final answer
    x = 37,739.79

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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.