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Finding the Fourth Proportional to 116,217.92, 160,380.68 and 65,916.92

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Solution

The fourth proportional to 116,217.92, 160,380.68 and 65,916.92 is: 90,965.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,217.92 : 160,380.68 = 65,916.92 : x
  2. Step 2: Convert to fraction form
    116,217.92/160,380.68 = 65,916.92/x
  3. Step 3: Cross multiply
    116,217.92x = 160,380.68 × 65,916.92
  4. Step 4: Simplify right side
    116,217.92x = 10,571,800,453.11
  5. Step 5: Solve for x
    x = 10,571,800,453.11/116,217.92
  6. Step 6: Final answer
    x = 90,965.32

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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.