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Finding the Fourth Proportional to 71,859.56, 107,790.01 and 25,112.57

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Solution

The fourth proportional to 71,859.56, 107,790.01 and 25,112.57 is: 37,669.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,859.56 : 107,790.01 = 25,112.57 : x
  2. Step 2: Convert to fraction form
    71,859.56/107,790.01 = 25,112.57/x
  3. Step 3: Cross multiply
    71,859.56x = 107,790.01 × 25,112.57
  4. Step 4: Simplify right side
    71,859.56x = 2,706,883,569.69
  5. Step 5: Solve for x
    x = 2,706,883,569.69/71,859.56
  6. Step 6: Final answer
    x = 37,669.08

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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.