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Finding the Fourth Proportional to 361,237.39, 541,857.36 and 121,344.45

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Solution

The fourth proportional to 361,237.39, 541,857.36 and 121,344.45 is: 182,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,237.39 : 541,857.36 = 121,344.45 : x
  2. Step 2: Convert to fraction form
    361,237.39/541,857.36 = 121,344.45/x
  3. Step 3: Cross multiply
    361,237.39x = 541,857.36 × 121,344.45
  4. Step 4: Simplify right side
    361,237.39x = 65,751,381,750.73
  5. Step 5: Solve for x
    x = 65,751,381,750.73/361,237.39
  6. Step 6: Final answer
    x = 182,017.10

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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.