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Finding the Fourth Proportional to 53,911.68, 80,392.52 and 50,171.88

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Solution

The fourth proportional to 53,911.68, 80,392.52 and 50,171.88 is: 74,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,911.68 : 80,392.52 = 50,171.88 : x
  2. Step 2: Convert to fraction form
    53,911.68/80,392.52 = 50,171.88/x
  3. Step 3: Cross multiply
    53,911.68x = 80,392.52 × 50,171.88
  4. Step 4: Simplify right side
    53,911.68x = 4,033,443,866.34
  5. Step 5: Solve for x
    x = 4,033,443,866.34/53,911.68
  6. Step 6: Final answer
    x = 74,815.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.