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Finding the Fourth Proportional to 245,396.43, 368,099.30 and 76,913.03

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Solution

The fourth proportional to 245,396.43, 368,099.30 and 76,913.03 is: 115,371.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,396.43 : 368,099.30 = 76,913.03 : x
  2. Step 2: Convert to fraction form
    245,396.43/368,099.30 = 76,913.03/x
  3. Step 3: Cross multiply
    245,396.43x = 368,099.30 × 76,913.03
  4. Step 4: Simplify right side
    245,396.43x = 28,311,633,039.56
  5. Step 5: Solve for x
    x = 28,311,633,039.56/245,396.43
  6. Step 6: Final answer
    x = 115,371.01

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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.