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Finding the Fourth Proportional to 239,252.81, 329,714.82 and 171,151.68

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Solution

The fourth proportional to 239,252.81, 329,714.82 and 171,151.68 is: 235,864.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,252.81 : 329,714.82 = 171,151.68 : x
  2. Step 2: Convert to fraction form
    239,252.81/329,714.82 = 171,151.68/x
  3. Step 3: Cross multiply
    239,252.81x = 329,714.82 × 171,151.68
  4. Step 4: Simplify right side
    239,252.81x = 56,431,246,600.33
  5. Step 5: Solve for x
    x = 56,431,246,600.33/239,252.81
  6. Step 6: Final answer
    x = 235,864.51

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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.