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Finding the Fourth Proportional to 81,343.92, 122,003.28 and 22,184.32

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Solution

The fourth proportional to 81,343.92, 122,003.28 and 22,184.32 is: 33,273.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,343.92 : 122,003.28 = 22,184.32 : x
  2. Step 2: Convert to fraction form
    81,343.92/122,003.28 = 22,184.32/x
  3. Step 3: Cross multiply
    81,343.92x = 122,003.28 × 22,184.32
  4. Step 4: Simplify right side
    81,343.92x = 2,706,559,804.57
  5. Step 5: Solve for x
    x = 2,706,559,804.57/81,343.92
  6. Step 6: Final answer
    x = 33,273.04

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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.