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Finding the Fourth Proportional to 53,179.61, 79,764.56 and 16,243.61

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Solution

The fourth proportional to 53,179.61, 79,764.56 and 16,243.61 is: 24,363.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,179.61 : 79,764.56 = 16,243.61 : x
  2. Step 2: Convert to fraction form
    53,179.61/79,764.56 = 16,243.61/x
  3. Step 3: Cross multiply
    53,179.61x = 79,764.56 × 16,243.61
  4. Step 4: Simplify right side
    53,179.61x = 1,295,664,323.24
  5. Step 5: Solve for x
    x = 1,295,664,323.24/53,179.61
  6. Step 6: Final answer
    x = 24,363.93

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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.