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Finding the Fourth Proportional to 85,110.92, 127,546.88 and 67,263.11

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Solution

The fourth proportional to 85,110.92, 127,546.88 and 67,263.11 is: 100,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,110.92 : 127,546.88 = 67,263.11 : x
  2. Step 2: Convert to fraction form
    85,110.92/127,546.88 = 67,263.11/x
  3. Step 3: Cross multiply
    85,110.92x = 127,546.88 × 67,263.11
  4. Step 4: Simplify right side
    85,110.92x = 8,579,198,845.55
  5. Step 5: Solve for x
    x = 8,579,198,845.55/85,110.92
  6. Step 6: Final answer
    x = 100,800.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.