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Finding the Fourth Proportional to 186,903, 279,896.45 and 168,930.72

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Solution

The fourth proportional to 186,903, 279,896.45 and 168,930.72 is: 252,982.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,903 : 279,896.45 = 168,930.72 : x
  2. Step 2: Convert to fraction form
    186,903/279,896.45 = 168,930.72/x
  3. Step 3: Cross multiply
    186,903x = 279,896.45 × 168,930.72
  4. Step 4: Simplify right side
    186,903x = 47,283,107,979.29
  5. Step 5: Solve for x
    x = 47,283,107,979.29/186,903
  6. Step 6: Final answer
    x = 252,982.07

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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.