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Finding the Fourth Proportional to 185,451.88, 278,174.94 and 74,641

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Solution

The fourth proportional to 185,451.88, 278,174.94 and 74,641 is: 111,960.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,451.88 : 278,174.94 = 74,641 : x
  2. Step 2: Convert to fraction form
    185,451.88/278,174.94 = 74,641/x
  3. Step 3: Cross multiply
    185,451.88x = 278,174.94 × 74,641
  4. Step 4: Simplify right side
    185,451.88x = 20,763,255,696.54
  5. Step 5: Solve for x
    x = 20,763,255,696.54/185,451.88
  6. Step 6: Final answer
    x = 111,960.34

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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.