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Finding the Fourth Proportional to 486,225.17, 729,311.39 and 149,265.89

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Solution

The fourth proportional to 486,225.17, 729,311.39 and 149,265.89 is: 223,890.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,225.17 : 729,311.39 = 149,265.89 : x
  2. Step 2: Convert to fraction form
    486,225.17/729,311.39 = 149,265.89/x
  3. Step 3: Cross multiply
    486,225.17x = 729,311.39 × 149,265.89
  4. Step 4: Simplify right side
    486,225.17x = 108,861,309,322.60
  5. Step 5: Solve for x
    x = 108,861,309,322.60/486,225.17
  6. Step 6: Final answer
    x = 223,890.73

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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.