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Finding the Fourth Proportional to 119,668.92, 165,135.66 and 65,950.92

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Solution

The fourth proportional to 119,668.92, 165,135.66 and 65,950.92 is: 91,008.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,668.92 : 165,135.66 = 65,950.92 : x
  2. Step 2: Convert to fraction form
    119,668.92/165,135.66 = 65,950.92/x
  3. Step 3: Cross multiply
    119,668.92x = 165,135.66 × 65,950.92
  4. Step 4: Simplify right side
    119,668.92x = 10,890,848,701.81
  5. Step 5: Solve for x
    x = 10,890,848,701.81/119,668.92
  6. Step 6: Final answer
    x = 91,008.16

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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.