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Finding the Fourth Proportional to 329,864.66, 455,211.33 and 178,958.42

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Solution

The fourth proportional to 329,864.66, 455,211.33 and 178,958.42 is: 246,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,864.66 : 455,211.33 = 178,958.42 : x
  2. Step 2: Convert to fraction form
    329,864.66/455,211.33 = 178,958.42/x
  3. Step 3: Cross multiply
    329,864.66x = 455,211.33 × 178,958.42
  4. Step 4: Simplify right side
    329,864.66x = 81,463,900,382.90
  5. Step 5: Solve for x
    x = 81,463,900,382.90/329,864.66
  6. Step 6: Final answer
    x = 246,961.59

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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.