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Finding the Fourth Proportional to 361,861.61, 499,375.67 and 198,526.47

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Solution

The fourth proportional to 361,861.61, 499,375.67 and 198,526.47 is: 273,970.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,861.61 : 499,375.67 = 198,526.47 : x
  2. Step 2: Convert to fraction form
    361,861.61/499,375.67 = 198,526.47/x
  3. Step 3: Cross multiply
    361,861.61x = 499,375.67 × 198,526.47
  4. Step 4: Simplify right side
    361,861.61x = 99,139,288,968.98
  5. Step 5: Solve for x
    x = 99,139,288,968.98/361,861.61
  6. Step 6: Final answer
    x = 273,970.18

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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.