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Finding the Fourth Proportional to 119,856.64, 179,729.28 and 44,921.28

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Solution

The fourth proportional to 119,856.64, 179,729.28 and 44,921.28 is: 67,361.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,856.64 : 179,729.28 = 44,921.28 : x
  2. Step 2: Convert to fraction form
    119,856.64/179,729.28 = 44,921.28/x
  3. Step 3: Cross multiply
    119,856.64x = 179,729.28 × 44,921.28
  4. Step 4: Simplify right side
    119,856.64x = 8,073,669,311.08
  5. Step 5: Solve for x
    x = 8,073,669,311.08/119,856.64
  6. Step 6: Final answer
    x = 67,361.05

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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.