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Finding the Fourth Proportional to 60,999.68, 91,489.13 and 16,616.05

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Solution

The fourth proportional to 60,999.68, 91,489.13 and 16,616.05 is: 24,921.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,999.68 : 91,489.13 = 16,616.05 : x
  2. Step 2: Convert to fraction form
    60,999.68/91,489.13 = 16,616.05/x
  3. Step 3: Cross multiply
    60,999.68x = 91,489.13 × 16,616.05
  4. Step 4: Simplify right side
    60,999.68x = 1,520,187,418.01
  5. Step 5: Solve for x
    x = 1,520,187,418.01/60,999.68
  6. Step 6: Final answer
    x = 24,921.24

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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.