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Finding the Fourth Proportional to 186,481.80, 279,722.70 and 53,366.40

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Solution

The fourth proportional to 186,481.80, 279,722.70 and 53,366.40 is: 80,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,481.80 : 279,722.70 = 53,366.40 : x
  2. Step 2: Convert to fraction form
    186,481.80/279,722.70 = 53,366.40/x
  3. Step 3: Cross multiply
    186,481.80x = 279,722.70 × 53,366.40
  4. Step 4: Simplify right side
    186,481.80x = 14,927,793,497.28
  5. Step 5: Solve for x
    x = 14,927,793,497.28/186,481.80
  6. Step 6: Final answer
    x = 80,049.60

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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.