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Finding the Fourth Proportional to 172,763.39, 238,304.36 and 118,954.96

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Solution

The fourth proportional to 172,763.39, 238,304.36 and 118,954.96 is: 164,082.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,763.39 : 238,304.36 = 118,954.96 : x
  2. Step 2: Convert to fraction form
    172,763.39/238,304.36 = 118,954.96/x
  3. Step 3: Cross multiply
    172,763.39x = 238,304.36 × 118,954.96
  4. Step 4: Simplify right side
    172,763.39x = 28,347,485,313.25
  5. Step 5: Solve for x
    x = 28,347,485,313.25/172,763.39
  6. Step 6: Final answer
    x = 164,082.71

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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.