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Finding the Fourth Proportional to 174,694.20, 262,041.30 and 81,382.20

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Solution

The fourth proportional to 174,694.20, 262,041.30 and 81,382.20 is: 122,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,694.20 : 262,041.30 = 81,382.20 : x
  2. Step 2: Convert to fraction form
    174,694.20/262,041.30 = 81,382.20/x
  3. Step 3: Cross multiply
    174,694.20x = 262,041.30 × 81,382.20
  4. Step 4: Simplify right side
    174,694.20x = 21,325,497,484.86
  5. Step 5: Solve for x
    x = 21,325,497,484.86/174,694.20
  6. Step 6: Final answer
    x = 122,073.30

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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.