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Finding the Fourth Proportional to 297,861.88, 411,049.40 and 163,725.88

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Solution

The fourth proportional to 297,861.88, 411,049.40 and 163,725.88 is: 225,941.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,861.88 : 411,049.40 = 163,725.88 : x
  2. Step 2: Convert to fraction form
    297,861.88/411,049.40 = 163,725.88/x
  3. Step 3: Cross multiply
    297,861.88x = 411,049.40 × 163,725.88
  4. Step 4: Simplify right side
    297,861.88x = 67,299,424,738.47
  5. Step 5: Solve for x
    x = 67,299,424,738.47/297,861.88
  6. Step 6: Final answer
    x = 225,941.72

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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.