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Finding the Fourth Proportional to 199,958.32, 299,937.43 and 80,069.23

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Solution

The fourth proportional to 199,958.32, 299,937.43 and 80,069.23 is: 120,103.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,958.32 : 299,937.43 = 80,069.23 : x
  2. Step 2: Convert to fraction form
    199,958.32/299,937.43 = 80,069.23/x
  3. Step 3: Cross multiply
    199,958.32x = 299,937.43 × 80,069.23
  4. Step 4: Simplify right side
    199,958.32x = 24,015,759,068.28
  5. Step 5: Solve for x
    x = 24,015,759,068.28/199,958.32
  6. Step 6: Final answer
    x = 120,103.82

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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.