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Finding the Fourth Proportional to 110,474.56, 152,406.36 and 74,651.52

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Solution

The fourth proportional to 110,474.56, 152,406.36 and 74,651.52 is: 102,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,474.56 : 152,406.36 = 74,651.52 : x
  2. Step 2: Convert to fraction form
    110,474.56/152,406.36 = 74,651.52/x
  3. Step 3: Cross multiply
    110,474.56x = 152,406.36 × 74,651.52
  4. Step 4: Simplify right side
    110,474.56x = 11,377,366,431.67
  5. Step 5: Solve for x
    x = 11,377,366,431.67/110,474.56
  6. Step 6: Final answer
    x = 102,986.30

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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.