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Finding the Fourth Proportional to 188,406.41, 282,609.61 and 88,493.31

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Solution

The fourth proportional to 188,406.41, 282,609.61 and 88,493.31 is: 132,739.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,406.41 : 282,609.61 = 88,493.31 : x
  2. Step 2: Convert to fraction form
    188,406.41/282,609.61 = 88,493.31/x
  3. Step 3: Cross multiply
    188,406.41x = 282,609.61 × 88,493.31
  4. Step 4: Simplify right side
    188,406.41x = 25,009,059,605.48
  5. Step 5: Solve for x
    x = 25,009,059,605.48/188,406.41
  6. Step 6: Final answer
    x = 132,739.97

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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.