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Finding the Fourth Proportional to 61,191.10, 91,769.95 and 16,807.31

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Solution

The fourth proportional to 61,191.10, 91,769.95 and 16,807.31 is: 25,206.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,191.10 : 91,769.95 = 16,807.31 : x
  2. Step 2: Convert to fraction form
    61,191.10/91,769.95 = 16,807.31/x
  3. Step 3: Cross multiply
    61,191.10x = 91,769.95 × 16,807.31
  4. Step 4: Simplify right side
    61,191.10x = 1,542,405,998.33
  5. Step 5: Solve for x
    x = 1,542,405,998.33/61,191.10
  6. Step 6: Final answer
    x = 25,206.38

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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.