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Finding the Fourth Proportional to 119,992.69, 165,600.17 and 66,283.57

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Solution

The fourth proportional to 119,992.69, 165,600.17 and 66,283.57 is: 91,476.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,992.69 : 165,600.17 = 66,283.57 : x
  2. Step 2: Convert to fraction form
    119,992.69/165,600.17 = 66,283.57/x
  3. Step 3: Cross multiply
    119,992.69x = 165,600.17 × 66,283.57
  4. Step 4: Simplify right side
    119,992.69x = 10,976,570,460.21
  5. Step 5: Solve for x
    x = 10,976,570,460.21/119,992.69
  6. Step 6: Final answer
    x = 91,476.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.