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Finding the Fourth Proportional to 185,843.84, 278,420.88 and 125,843.36

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Solution

The fourth proportional to 185,843.84, 278,420.88 and 125,843.36 is: 188,531.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,843.84 : 278,420.88 = 125,843.36 : x
  2. Step 2: Convert to fraction form
    185,843.84/278,420.88 = 125,843.36/x
  3. Step 3: Cross multiply
    185,843.84x = 278,420.88 × 125,843.36
  4. Step 4: Simplify right side
    185,843.84x = 35,037,419,033.36
  5. Step 5: Solve for x
    x = 35,037,419,033.36/185,843.84
  6. Step 6: Final answer
    x = 188,531.51

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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.