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Finding the Fourth Proportional to 186,622.20, 279,848.88 and 53,471.88

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Solution

The fourth proportional to 186,622.20, 279,848.88 and 53,471.88 is: 80,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,622.20 : 279,848.88 = 53,471.88 : x
  2. Step 2: Convert to fraction form
    186,622.20/279,848.88 = 53,471.88/x
  3. Step 3: Cross multiply
    186,622.20x = 279,848.88 × 53,471.88
  4. Step 4: Simplify right side
    186,622.20x = 14,964,045,729.49
  5. Step 5: Solve for x
    x = 14,964,045,729.49/186,622.20
  6. Step 6: Final answer
    x = 80,183.63

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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.