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Finding the Fourth Proportional to 98,183.25, 135,492.90 and 53,471.25

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Solution

The fourth proportional to 98,183.25, 135,492.90 and 53,471.25 is: 73,790.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,183.25 : 135,492.90 = 53,471.25 : x
  2. Step 2: Convert to fraction form
    98,183.25/135,492.90 = 53,471.25/x
  3. Step 3: Cross multiply
    98,183.25x = 135,492.90 × 53,471.25
  4. Step 4: Simplify right side
    98,183.25x = 7,244,974,729.13
  5. Step 5: Solve for x
    x = 7,244,974,729.13/98,183.25
  6. Step 6: Final answer
    x = 73,790.33

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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.