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Finding the Fourth Proportional to 61,191.48, 91,770.51 and 16,807.68

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Solution

The fourth proportional to 61,191.48, 91,770.51 and 16,807.68 is: 25,206.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,191.48 : 91,770.51 = 16,807.68 : x
  2. Step 2: Convert to fraction form
    61,191.48/91,770.51 = 16,807.68/x
  3. Step 3: Cross multiply
    61,191.48x = 91,770.51 × 16,807.68
  4. Step 4: Simplify right side
    61,191.48x = 1,542,449,365.52
  5. Step 5: Solve for x
    x = 1,542,449,365.52/61,191.48
  6. Step 6: Final answer
    x = 25,206.93

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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.