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Finding the Fourth Proportional to 329,616.72, 494,439.46 and 161,278.79

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Solution

The fourth proportional to 329,616.72, 494,439.46 and 161,278.79 is: 241,925.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,616.72 : 494,439.46 = 161,278.79 : x
  2. Step 2: Convert to fraction form
    329,616.72/494,439.46 = 161,278.79/x
  3. Step 3: Cross multiply
    329,616.72x = 494,439.46 × 161,278.79
  4. Step 4: Simplify right side
    329,616.72x = 79,742,594,961.66
  5. Step 5: Solve for x
    x = 79,742,594,961.66/329,616.72
  6. Step 6: Final answer
    x = 241,925.21

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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.