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Finding the Fourth Proportional to 60,869.94, 91,309.50 and 18,171.99

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Solution

The fourth proportional to 60,869.94, 91,309.50 and 18,171.99 is: 27,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,869.94 : 91,309.50 = 18,171.99 : x
  2. Step 2: Convert to fraction form
    60,869.94/91,309.50 = 18,171.99/x
  3. Step 3: Cross multiply
    60,869.94x = 91,309.50 × 18,171.99
  4. Step 4: Simplify right side
    60,869.94x = 1,659,275,230.05
  5. Step 5: Solve for x
    x = 1,659,275,230.05/60,869.94
  6. Step 6: Final answer
    x = 27,259.35

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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.