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Finding the Fourth Proportional to 113,361.70, 170,042.55 and 106,363.30

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Solution

The fourth proportional to 113,361.70, 170,042.55 and 106,363.30 is: 159,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,361.70 : 170,042.55 = 106,363.30 : x
  2. Step 2: Convert to fraction form
    113,361.70/170,042.55 = 106,363.30/x
  3. Step 3: Cross multiply
    113,361.70x = 170,042.55 × 106,363.30
  4. Step 4: Simplify right side
    113,361.70x = 18,086,286,758.42
  5. Step 5: Solve for x
    x = 18,086,286,758.42/113,361.70
  6. Step 6: Final answer
    x = 159,544.95

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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.