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Finding the Fourth Proportional to 188,338.80, 282,267.78 and 88,278.54

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Solution

The fourth proportional to 188,338.80, 282,267.78 and 88,278.54 is: 132,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,338.80 : 282,267.78 = 88,278.54 : x
  2. Step 2: Convert to fraction form
    188,338.80/282,267.78 = 88,278.54/x
  3. Step 3: Cross multiply
    188,338.80x = 282,267.78 × 88,278.54
  4. Step 4: Simplify right side
    188,338.80x = 24,918,187,507.44
  5. Step 5: Solve for x
    x = 24,918,187,507.44/188,338.80
  6. Step 6: Final answer
    x = 132,305.12

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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.