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Finding the Fourth Proportional to 71,863.84, 107,795.96 and 25,116.72

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Solution

The fourth proportional to 71,863.84, 107,795.96 and 25,116.72 is: 37,675.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,863.84 : 107,795.96 = 25,116.72 : x
  2. Step 2: Convert to fraction form
    71,863.84/107,795.96 = 25,116.72/x
  3. Step 3: Cross multiply
    71,863.84x = 107,795.96 × 25,116.72
  4. Step 4: Simplify right side
    71,863.84x = 2,707,480,944.45
  5. Step 5: Solve for x
    x = 2,707,480,944.45/71,863.84
  6. Step 6: Final answer
    x = 37,675.15

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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.