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Finding the Fourth Proportional to 140,797.81, 211,255.03 and 56,617.60

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Solution

The fourth proportional to 140,797.81, 211,255.03 and 56,617.60 is: 84,949.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,797.81 : 211,255.03 = 56,617.60 : x
  2. Step 2: Convert to fraction form
    140,797.81/211,255.03 = 56,617.60/x
  3. Step 3: Cross multiply
    140,797.81x = 211,255.03 × 56,617.60
  4. Step 4: Simplify right side
    140,797.81x = 11,960,752,786.53
  5. Step 5: Solve for x
    x = 11,960,752,786.53/140,797.81
  6. Step 6: Final answer
    x = 84,949.85

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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.