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Finding the Fourth Proportional to 238,593.21, 329,264.93 and 129,704.88

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Solution

The fourth proportional to 238,593.21, 329,264.93 and 129,704.88 is: 178,996.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,593.21 : 329,264.93 = 129,704.88 : x
  2. Step 2: Convert to fraction form
    238,593.21/329,264.93 = 129,704.88/x
  3. Step 3: Cross multiply
    238,593.21x = 329,264.93 × 129,704.88
  4. Step 4: Simplify right side
    238,593.21x = 42,707,267,585.33
  5. Step 5: Solve for x
    x = 42,707,267,585.33/238,593.21
  6. Step 6: Final answer
    x = 178,996.16

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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.