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Finding the Fourth Proportional to 217,597.37, 300,286.62 and 122,102.01

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Solution

The fourth proportional to 217,597.37, 300,286.62 and 122,102.01 is: 168,502.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,597.37 : 300,286.62 = 122,102.01 : x
  2. Step 2: Convert to fraction form
    217,597.37/300,286.62 = 122,102.01/x
  3. Step 3: Cross multiply
    217,597.37x = 300,286.62 × 122,102.01
  4. Step 4: Simplify right side
    217,597.37x = 36,665,599,878.11
  5. Step 5: Solve for x
    x = 36,665,599,878.11/217,597.37
  6. Step 6: Final answer
    x = 168,502.04

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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.