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Finding the Fourth Proportional to 217,224.40, 325,836.60 and 134,165.20

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Solution

The fourth proportional to 217,224.40, 325,836.60 and 134,165.20 is: 201,247.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,224.40 : 325,836.60 = 134,165.20 : x
  2. Step 2: Convert to fraction form
    217,224.40/325,836.60 = 134,165.20/x
  3. Step 3: Cross multiply
    217,224.40x = 325,836.60 × 134,165.20
  4. Step 4: Simplify right side
    217,224.40x = 43,715,932,606.32
  5. Step 5: Solve for x
    x = 43,715,932,606.32/217,224.40
  6. Step 6: Final answer
    x = 201,247.80

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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.