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Finding the Fourth Proportional to 186,255.38, 279,306.54 and 73,920.14

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Solution

The fourth proportional to 186,255.38, 279,306.54 and 73,920.14 is: 110,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,255.38 : 279,306.54 = 73,920.14 : x
  2. Step 2: Convert to fraction form
    186,255.38/279,306.54 = 73,920.14/x
  3. Step 3: Cross multiply
    186,255.38x = 279,306.54 × 73,920.14
  4. Step 4: Simplify right side
    186,255.38x = 20,646,378,539.72
  5. Step 5: Solve for x
    x = 20,646,378,539.72/186,255.38
  6. Step 6: Final answer
    x = 110,849.84

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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.