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Finding the Fourth Proportional to 363,891.40, 545,837.64 and 127,233.70

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Solution

The fourth proportional to 363,891.40, 545,837.64 and 127,233.70 is: 190,850.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,891.40 : 545,837.64 = 127,233.70 : x
  2. Step 2: Convert to fraction form
    363,891.40/545,837.64 = 127,233.70/x
  3. Step 3: Cross multiply
    363,891.40x = 545,837.64 × 127,233.70
  4. Step 4: Simplify right side
    363,891.40x = 69,448,942,536.47
  5. Step 5: Solve for x
    x = 69,448,942,536.47/363,891.40
  6. Step 6: Final answer
    x = 190,850.74

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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.