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Finding the Fourth Proportional to 70,759.91, 106,101.43 and 35,143.09

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Solution

The fourth proportional to 70,759.91, 106,101.43 and 35,143.09 is: 52,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,759.91 : 106,101.43 = 35,143.09 : x
  2. Step 2: Convert to fraction form
    70,759.91/106,101.43 = 35,143.09/x
  3. Step 3: Cross multiply
    70,759.91x = 106,101.43 × 35,143.09
  4. Step 4: Simplify right side
    70,759.91x = 3,728,732,103.62
  5. Step 5: Solve for x
    x = 3,728,732,103.62/70,759.91
  6. Step 6: Final answer
    x = 52,695.55

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1.5x scale

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.