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Finding the Fourth Proportional to 329,613.35, 494,434.40 and 161,275.41

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Solution

The fourth proportional to 329,613.35, 494,434.40 and 161,275.41 is: 241,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,613.35 : 494,434.40 = 161,275.41 : x
  2. Step 2: Convert to fraction form
    329,613.35/494,434.40 = 161,275.41/x
  3. Step 3: Cross multiply
    329,613.35x = 494,434.40 × 161,275.41
  4. Step 4: Simplify right side
    329,613.35x = 79,740,109,771.73
  5. Step 5: Solve for x
    x = 79,740,109,771.73/329,613.35
  6. Step 6: Final answer
    x = 241,920.15

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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.