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Finding the Fourth Proportional to 217,175.63, 325,319.97 and 111,773.17

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Solution

The fourth proportional to 217,175.63, 325,319.97 and 111,773.17 is: 167,431.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,175.63 : 325,319.97 = 111,773.17 : x
  2. Step 2: Convert to fraction form
    217,175.63/325,319.97 = 111,773.17/x
  3. Step 3: Cross multiply
    217,175.63x = 325,319.97 × 111,773.17
  4. Step 4: Simplify right side
    217,175.63x = 36,362,043,497.91
  5. Step 5: Solve for x
    x = 36,362,043,497.91/217,175.63
  6. Step 6: Final answer
    x = 167,431.51

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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.