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Finding the Fourth Proportional to 173,022.72, 259,534.08 and 67,891.20

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Solution

The fourth proportional to 173,022.72, 259,534.08 and 67,891.20 is: 101,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,022.72 : 259,534.08 = 67,891.20 : x
  2. Step 2: Convert to fraction form
    173,022.72/259,534.08 = 67,891.20/x
  3. Step 3: Cross multiply
    173,022.72x = 259,534.08 × 67,891.20
  4. Step 4: Simplify right side
    173,022.72x = 17,620,080,132.10
  5. Step 5: Solve for x
    x = 17,620,080,132.10/173,022.72
  6. Step 6: Final answer
    x = 101,836.80

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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.