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Finding the Fourth Proportional to 185,965.44, 278,940.84 and 79,305.44

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Solution

The fourth proportional to 185,965.44, 278,940.84 and 79,305.44 is: 118,955.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,965.44 : 278,940.84 = 79,305.44 : x
  2. Step 2: Convert to fraction form
    185,965.44/278,940.84 = 79,305.44/x
  3. Step 3: Cross multiply
    185,965.44x = 278,940.84 × 79,305.44
  4. Step 4: Simplify right side
    185,965.44x = 22,121,526,050.17
  5. Step 5: Solve for x
    x = 22,121,526,050.17/185,965.44
  6. Step 6: Final answer
    x = 118,955.04

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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.