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Finding the Fourth Proportional to 54,326.61, 81,472.41 and 50,784.57

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Solution

The fourth proportional to 54,326.61, 81,472.41 and 50,784.57 is: 76,160.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,326.61 : 81,472.41 = 50,784.57 : x
  2. Step 2: Convert to fraction form
    54,326.61/81,472.41 = 50,784.57/x
  3. Step 3: Cross multiply
    54,326.61x = 81,472.41 × 50,784.57
  4. Step 4: Simplify right side
    54,326.61x = 4,137,541,308.71
  5. Step 5: Solve for x
    x = 4,137,541,308.71/54,326.61
  6. Step 6: Final answer
    x = 76,160.49

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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.