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Finding the Fourth Proportional to 67,203.15, 100,792.17 and 27,211.56

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Solution

The fourth proportional to 67,203.15, 100,792.17 and 27,211.56 is: 40,812.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,203.15 : 100,792.17 = 27,211.56 : x
  2. Step 2: Convert to fraction form
    67,203.15/100,792.17 = 27,211.56/x
  3. Step 3: Cross multiply
    67,203.15x = 100,792.17 × 27,211.56
  4. Step 4: Simplify right side
    67,203.15x = 2,742,712,181.49
  5. Step 5: Solve for x
    x = 2,742,712,181.49/67,203.15
  6. Step 6: Final answer
    x = 40,812.26

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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.