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Finding the Fourth Proportional to 101,612.80, 152,694.97 and 54,260.84

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Solution

The fourth proportional to 101,612.80, 152,694.97 and 54,260.84 is: 81,538.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,612.80 : 152,694.97 = 54,260.84 : x
  2. Step 2: Convert to fraction form
    101,612.80/152,694.97 = 54,260.84/x
  3. Step 3: Cross multiply
    101,612.80x = 152,694.97 × 54,260.84
  4. Step 4: Simplify right side
    101,612.80x = 8,285,357,028.37
  5. Step 5: Solve for x
    x = 8,285,357,028.37/101,612.80
  6. Step 6: Final answer
    x = 81,538.51

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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.