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Finding the Fourth Proportional to 109,474.56, 151,074.80 and 59,173.56

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Solution

The fourth proportional to 109,474.56, 151,074.80 and 59,173.56 is: 81,659.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,474.56 : 151,074.80 = 59,173.56 : x
  2. Step 2: Convert to fraction form
    109,474.56/151,074.80 = 59,173.56/x
  3. Step 3: Cross multiply
    109,474.56x = 151,074.80 × 59,173.56
  4. Step 4: Simplify right side
    109,474.56x = 8,939,633,446.42
  5. Step 5: Solve for x
    x = 8,939,633,446.42/109,474.56
  6. Step 6: Final answer
    x = 81,659.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.