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Finding the Fourth Proportional to 71,846.40, 107,818.56 and 25,099.20

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Solution

The fourth proportional to 71,846.40, 107,818.56 and 25,099.20 is: 37,665.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,846.40 : 107,818.56 = 25,099.20 : x
  2. Step 2: Convert to fraction form
    71,846.40/107,818.56 = 25,099.20/x
  3. Step 3: Cross multiply
    71,846.40x = 107,818.56 × 25,099.20
  4. Step 4: Simplify right side
    71,846.40x = 2,706,159,601.15
  5. Step 5: Solve for x
    x = 2,706,159,601.15/71,846.40
  6. Step 6: Final answer
    x = 37,665.90

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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.