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Finding the Fourth Proportional to 230,578.24, 318,195.12 and 129,976.24

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Solution

The fourth proportional to 230,578.24, 318,195.12 and 129,976.24 is: 179,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,578.24 : 318,195.12 = 129,976.24 : x
  2. Step 2: Convert to fraction form
    230,578.24/318,195.12 = 129,976.24/x
  3. Step 3: Cross multiply
    230,578.24x = 318,195.12 × 129,976.24
  4. Step 4: Simplify right side
    230,578.24x = 41,357,805,283.95
  5. Step 5: Solve for x
    x = 41,357,805,283.95/230,578.24
  6. Step 6: Final answer
    x = 179,365.60

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