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Finding the Fourth Proportional to 186,379.84, 279,563.82 and 110,995.48

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Solution

The fourth proportional to 186,379.84, 279,563.82 and 110,995.48 is: 166,489.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,379.84 : 279,563.82 = 110,995.48 : x
  2. Step 2: Convert to fraction form
    186,379.84/279,563.82 = 110,995.48/x
  3. Step 3: Cross multiply
    186,379.84x = 279,563.82 × 110,995.48
  4. Step 4: Simplify right side
    186,379.84x = 31,030,320,391.53
  5. Step 5: Solve for x
    x = 31,030,320,391.53/186,379.84
  6. Step 6: Final answer
    x = 166,489.68

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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.