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Finding the Fourth Proportional to 119,690.93, 165,173.45 and 65,976.85

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Solution

The fourth proportional to 119,690.93, 165,173.45 and 65,976.85 is: 91,048.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,690.93 : 165,173.45 = 65,976.85 : x
  2. Step 2: Convert to fraction form
    119,690.93/165,173.45 = 65,976.85/x
  3. Step 3: Cross multiply
    119,690.93x = 165,173.45 × 65,976.85
  4. Step 4: Simplify right side
    119,690.93x = 10,897,623,439.23
  5. Step 5: Solve for x
    x = 10,897,623,439.23/119,690.93
  6. Step 6: Final answer
    x = 91,048.03

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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.