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Finding the Fourth Proportional to 119,663.97, 165,137.40 and 65,950.94

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Solution

The fourth proportional to 119,663.97, 165,137.40 and 65,950.94 is: 91,012.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,663.97 : 165,137.40 = 65,950.94 : x
  2. Step 2: Convert to fraction form
    119,663.97/165,137.40 = 65,950.94/x
  3. Step 3: Cross multiply
    119,663.97x = 165,137.40 × 65,950.94
  4. Step 4: Simplify right side
    119,663.97x = 10,890,966,759.16
  5. Step 5: Solve for x
    x = 10,890,966,759.16/119,663.97
  6. Step 6: Final answer
    x = 91,012.92

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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.