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Finding the Fourth Proportional to 217,651.24, 300,358.49 and 122,158.01

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Solution

The fourth proportional to 217,651.24, 300,358.49 and 122,158.01 is: 168,577.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,651.24 : 300,358.49 = 122,158.01 : x
  2. Step 2: Convert to fraction form
    217,651.24/300,358.49 = 122,158.01/x
  3. Step 3: Cross multiply
    217,651.24x = 300,358.49 × 122,158.01
  4. Step 4: Simplify right side
    217,651.24x = 36,691,195,425.00
  5. Step 5: Solve for x
    x = 36,691,195,425.00/217,651.24
  6. Step 6: Final answer
    x = 168,577.93

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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.