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Finding the Fourth Proportional to 186,354.27, 279,564.21 and 79,679.70

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Solution

The fourth proportional to 186,354.27, 279,564.21 and 79,679.70 is: 119,533.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,354.27 : 279,564.21 = 79,679.70 : x
  2. Step 2: Convert to fraction form
    186,354.27/279,564.21 = 79,679.70/x
  3. Step 3: Cross multiply
    186,354.27x = 279,564.21 × 79,679.70
  4. Step 4: Simplify right side
    186,354.27x = 22,275,592,383.54
  5. Step 5: Solve for x
    x = 22,275,592,383.54/186,354.27
  6. Step 6: Final answer
    x = 119,533.58

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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.