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Finding the Fourth Proportional to 113,286.79, 169,919.17 and 34,401.70

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Solution

The fourth proportional to 113,286.79, 169,919.17 and 34,401.70 is: 51,599.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,286.79 : 169,919.17 = 34,401.70 : x
  2. Step 2: Convert to fraction form
    113,286.79/169,919.17 = 34,401.70/x
  3. Step 3: Cross multiply
    113,286.79x = 169,919.17 × 34,401.70
  4. Step 4: Simplify right side
    113,286.79x = 5,845,508,138.58
  5. Step 5: Solve for x
    x = 5,845,508,138.58/113,286.79
  6. Step 6: Final answer
    x = 51,599.20

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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.