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Finding the Fourth Proportional to 215,568.46, 323,402.78 and 73,414.97

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Solution

The fourth proportional to 215,568.46, 323,402.78 and 73,414.97 is: 110,139.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,568.46 : 323,402.78 = 73,414.97 : x
  2. Step 2: Convert to fraction form
    215,568.46/323,402.78 = 73,414.97/x
  3. Step 3: Cross multiply
    215,568.46x = 323,402.78 × 73,414.97
  4. Step 4: Simplify right side
    215,568.46x = 23,742,603,407.53
  5. Step 5: Solve for x
    x = 23,742,603,407.53/215,568.46
  6. Step 6: Final answer
    x = 110,139.51

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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.