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Finding the Fourth Proportional to 54,660.76, 82,083.30 and 51,854.92

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Solution

The fourth proportional to 54,660.76, 82,083.30 and 51,854.92 is: 77,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,660.76 : 82,083.30 = 51,854.92 : x
  2. Step 2: Convert to fraction form
    54,660.76/82,083.30 = 51,854.92/x
  3. Step 3: Cross multiply
    54,660.76x = 82,083.30 × 51,854.92
  4. Step 4: Simplify right side
    54,660.76x = 4,256,422,954.84
  5. Step 5: Solve for x
    x = 4,256,422,954.84/54,660.76
  6. Step 6: Final answer
    x = 77,869.81

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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.