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Finding the Fourth Proportional to 54,305.70, 81,531.45 and 34,671.30

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Solution

The fourth proportional to 54,305.70, 81,531.45 and 34,671.30 is: 52,053.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,305.70 : 81,531.45 = 34,671.30 : x
  2. Step 2: Convert to fraction form
    54,305.70/81,531.45 = 34,671.30/x
  3. Step 3: Cross multiply
    54,305.70x = 81,531.45 × 34,671.30
  4. Step 4: Simplify right side
    54,305.70x = 2,826,801,362.39
  5. Step 5: Solve for x
    x = 2,826,801,362.39/54,305.70
  6. Step 6: Final answer
    x = 52,053.49

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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.