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Finding the Fourth Proportional to 218,265.47, 301,243.25 and 126,371.37

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Solution

The fourth proportional to 218,265.47, 301,243.25 and 126,371.37 is: 174,413.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,265.47 : 301,243.25 = 126,371.37 : x
  2. Step 2: Convert to fraction form
    218,265.47/301,243.25 = 126,371.37/x
  3. Step 3: Cross multiply
    218,265.47x = 301,243.25 × 126,371.37
  4. Step 4: Simplify right side
    218,265.47x = 38,068,523,651.34
  5. Step 5: Solve for x
    x = 38,068,523,651.34/218,265.47
  6. Step 6: Final answer
    x = 174,413.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.