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Finding the Fourth Proportional to 119,645.56, 165,110.17 and 65,197.63

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Solution

The fourth proportional to 119,645.56, 165,110.17 and 65,197.63 is: 89,972.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,645.56 : 165,110.17 = 65,197.63 : x
  2. Step 2: Convert to fraction form
    119,645.56/165,110.17 = 65,197.63/x
  3. Step 3: Cross multiply
    119,645.56x = 165,110.17 × 65,197.63
  4. Step 4: Simplify right side
    119,645.56x = 10,764,792,022.68
  5. Step 5: Solve for x
    x = 10,764,792,022.68/119,645.56
  6. Step 6: Final answer
    x = 89,972.35

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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.