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Finding the Fourth Proportional to 111,720.91, 167,528.69 and 40,593.39

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Solution

The fourth proportional to 111,720.91, 167,528.69 and 40,593.39 is: 60,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,720.91 : 167,528.69 = 40,593.39 : x
  2. Step 2: Convert to fraction form
    111,720.91/167,528.69 = 40,593.39/x
  3. Step 3: Cross multiply
    111,720.91x = 167,528.69 × 40,593.39
  4. Step 4: Simplify right side
    111,720.91x = 6,800,557,449.36
  5. Step 5: Solve for x
    x = 6,800,557,449.36/111,720.91
  6. Step 6: Final answer
    x = 60,870.95

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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.