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Finding the Fourth Proportional to 120,063.53, 179,952.15 and 55,935.65

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Solution

The fourth proportional to 120,063.53, 179,952.15 and 55,935.65 is: 83,836.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,063.53 : 179,952.15 = 55,935.65 : x
  2. Step 2: Convert to fraction form
    120,063.53/179,952.15 = 55,935.65/x
  3. Step 3: Cross multiply
    120,063.53x = 179,952.15 × 55,935.65
  4. Step 4: Simplify right side
    120,063.53x = 10,065,741,138.79
  5. Step 5: Solve for x
    x = 10,065,741,138.79/120,063.53
  6. Step 6: Final answer
    x = 83,836.79

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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.