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Finding the Fourth Proportional to 119,626.89, 165,083.01 and 65,911.44

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Solution

The fourth proportional to 119,626.89, 165,083.01 and 65,911.44 is: 90,956.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,626.89 : 165,083.01 = 65,911.44 : x
  2. Step 2: Convert to fraction form
    119,626.89/165,083.01 = 65,911.44/x
  3. Step 3: Cross multiply
    119,626.89x = 165,083.01 × 65,911.44
  4. Step 4: Simplify right side
    119,626.89x = 10,880,858,908.63
  5. Step 5: Solve for x
    x = 10,880,858,908.63/119,626.89
  6. Step 6: Final answer
    x = 90,956.63

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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.