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Finding the Fourth Proportional to 143,956.91, 215,935.73 and 73,797.95

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Solution

The fourth proportional to 143,956.91, 215,935.73 and 73,797.95 is: 110,697.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,956.91 : 215,935.73 = 73,797.95 : x
  2. Step 2: Convert to fraction form
    143,956.91/215,935.73 = 73,797.95/x
  3. Step 3: Cross multiply
    143,956.91x = 215,935.73 × 73,797.95
  4. Step 4: Simplify right side
    143,956.91x = 15,935,614,205.75
  5. Step 5: Solve for x
    x = 15,935,614,205.75/143,956.91
  6. Step 6: Final answer
    x = 110,697.11

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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.