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Finding the Fourth Proportional to 114,643.11, 171,906.13 and 67,350.59

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Solution

The fourth proportional to 114,643.11, 171,906.13 and 67,350.59 is: 100,991.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,643.11 : 171,906.13 = 67,350.59 : x
  2. Step 2: Convert to fraction form
    114,643.11/171,906.13 = 67,350.59/x
  3. Step 3: Cross multiply
    114,643.11x = 171,906.13 × 67,350.59
  4. Step 4: Simplify right side
    114,643.11x = 11,577,979,149.42
  5. Step 5: Solve for x
    x = 11,577,979,149.42/114,643.11
  6. Step 6: Final answer
    x = 100,991.49

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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.