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Finding the Fourth Proportional to 70,690.62, 106,035.95 and 33,223.18

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Solution

The fourth proportional to 70,690.62, 106,035.95 and 33,223.18 is: 49,834.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,690.62 : 106,035.95 = 33,223.18 : x
  2. Step 2: Convert to fraction form
    70,690.62/106,035.95 = 33,223.18/x
  3. Step 3: Cross multiply
    70,690.62x = 106,035.95 × 33,223.18
  4. Step 4: Simplify right side
    70,690.62x = 3,522,851,453.32
  5. Step 5: Solve for x
    x = 3,522,851,453.32/70,690.62
  6. Step 6: Final answer
    x = 49,834.78

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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.