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Finding the Fourth Proportional to 245,399.44, 368,103.76 and 76,916.04

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Solution

The fourth proportional to 245,399.44, 368,103.76 and 76,916.04 is: 115,375.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,399.44 : 368,103.76 = 76,916.04 : x
  2. Step 2: Convert to fraction form
    245,399.44/368,103.76 = 76,916.04/x
  3. Step 3: Cross multiply
    245,399.44x = 368,103.76 × 76,916.04
  4. Step 4: Simplify right side
    245,399.44x = 28,313,083,528.31
  5. Step 5: Solve for x
    x = 28,313,083,528.31/245,399.44
  6. Step 6: Final answer
    x = 115,375.50

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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.