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Finding the Fourth Proportional to 119,704.69, 165,193.58 and 65,991.63

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Solution

The fourth proportional to 119,704.69, 165,193.58 and 65,991.63 is: 91,069.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,704.69 : 165,193.58 = 65,991.63 : x
  2. Step 2: Convert to fraction form
    119,704.69/165,193.58 = 65,991.63/x
  3. Step 3: Cross multiply
    119,704.69x = 165,193.58 × 65,991.63
  4. Step 4: Simplify right side
    119,704.69x = 10,901,393,609.74
  5. Step 5: Solve for x
    x = 10,901,393,609.74/119,704.69
  6. Step 6: Final answer
    x = 91,069.06

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1.5x scale

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.