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Finding the Fourth Proportional to 119,956.64, 179,960.32 and 45,077.44

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Solution

The fourth proportional to 119,956.64, 179,960.32 and 45,077.44 is: 67,625.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,956.64 : 179,960.32 = 45,077.44 : x
  2. Step 2: Convert to fraction form
    119,956.64/179,960.32 = 45,077.44/x
  3. Step 3: Cross multiply
    119,956.64x = 179,960.32 × 45,077.44
  4. Step 4: Simplify right side
    119,956.64x = 8,112,150,527.18
  5. Step 5: Solve for x
    x = 8,112,150,527.18/119,956.64
  6. Step 6: Final answer
    x = 67,625.69

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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.