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Finding the Fourth Proportional to 70,782.66, 106,135.56 and 35,165.88

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Solution

The fourth proportional to 70,782.66, 106,135.56 and 35,165.88 is: 52,729.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,782.66 : 106,135.56 = 35,165.88 : x
  2. Step 2: Convert to fraction form
    70,782.66/106,135.56 = 35,165.88/x
  3. Step 3: Cross multiply
    70,782.66x = 106,135.56 × 35,165.88
  4. Step 4: Simplify right side
    70,782.66x = 3,732,350,366.69
  5. Step 5: Solve for x
    x = 3,732,350,366.69/70,782.66
  6. Step 6: Final answer
    x = 52,729.73

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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.