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Finding the Fourth Proportional to 73,116.94, 109,674.96 and 20,526.46

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Solution

The fourth proportional to 73,116.94, 109,674.96 and 20,526.46 is: 30,789.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,116.94 : 109,674.96 = 20,526.46 : x
  2. Step 2: Convert to fraction form
    73,116.94/109,674.96 = 20,526.46/x
  3. Step 3: Cross multiply
    73,116.94x = 109,674.96 × 20,526.46
  4. Step 4: Simplify right side
    73,116.94x = 2,251,238,679.44
  5. Step 5: Solve for x
    x = 2,251,238,679.44/73,116.94
  6. Step 6: Final answer
    x = 30,789.56

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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.