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Finding the Fourth Proportional to 236,978.80, 355,338.60 and 96,578.80

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Solution

The fourth proportional to 236,978.80, 355,338.60 and 96,578.80 is: 144,815.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,978.80 : 355,338.60 = 96,578.80 : x
  2. Step 2: Convert to fraction form
    236,978.80/355,338.60 = 96,578.80/x
  3. Step 3: Cross multiply
    236,978.80x = 355,338.60 × 96,578.80
  4. Step 4: Simplify right side
    236,978.80x = 34,318,175,581.68
  5. Step 5: Solve for x
    x = 34,318,175,581.68/236,978.80
  6. Step 6: Final answer
    x = 144,815.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.