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Finding the Fourth Proportional to 188,992.67, 283,390.57 and 70,566.62

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Solution

The fourth proportional to 188,992.67, 283,390.57 and 70,566.62 is: 105,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,992.67 : 283,390.57 = 70,566.62 : x
  2. Step 2: Convert to fraction form
    188,992.67/283,390.57 = 70,566.62/x
  3. Step 3: Cross multiply
    188,992.67x = 283,390.57 × 70,566.62
  4. Step 4: Simplify right side
    188,992.67x = 19,997,914,664.77
  5. Step 5: Solve for x
    x = 19,997,914,664.77/188,992.67
  6. Step 6: Final answer
    x = 105,813.18

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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.