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Finding the Fourth Proportional to 186,636.52, 279,872.42 and 53,486.56

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Solution

The fourth proportional to 186,636.52, 279,872.42 and 53,486.56 is: 80,206.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,636.52 : 279,872.42 = 53,486.56 : x
  2. Step 2: Convert to fraction form
    186,636.52/279,872.42 = 53,486.56/x
  3. Step 3: Cross multiply
    186,636.52x = 279,872.42 × 53,486.56
  4. Step 4: Simplify right side
    186,636.52x = 14,969,412,984.68
  5. Step 5: Solve for x
    x = 14,969,412,984.68/186,636.52
  6. Step 6: Final answer
    x = 80,206.24

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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.