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Finding the Fourth Proportional to 172,550.28, 258,836.58 and 54,226.56

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Solution

The fourth proportional to 172,550.28, 258,836.58 and 54,226.56 is: 81,343.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,550.28 : 258,836.58 = 54,226.56 : x
  2. Step 2: Convert to fraction form
    172,550.28/258,836.58 = 54,226.56/x
  3. Step 3: Cross multiply
    172,550.28x = 258,836.58 × 54,226.56
  4. Step 4: Simplify right side
    172,550.28x = 14,035,817,335.56
  5. Step 5: Solve for x
    x = 14,035,817,335.56/172,550.28
  6. Step 6: Final answer
    x = 81,343.35

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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.