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Finding the Fourth Proportional to 188,387.67, 282,678.48 and 104,132.19

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Solution

The fourth proportional to 188,387.67, 282,678.48 and 104,132.19 is: 156,251.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,387.67 : 282,678.48 = 104,132.19 : x
  2. Step 2: Convert to fraction form
    188,387.67/282,678.48 = 104,132.19/x
  3. Step 3: Cross multiply
    188,387.67x = 282,678.48 × 104,132.19
  4. Step 4: Simplify right side
    188,387.67x = 29,435,929,188.27
  5. Step 5: Solve for x
    x = 29,435,929,188.27/188,387.67
  6. Step 6: Final answer
    x = 156,251.89

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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.