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Finding the Fourth Proportional to 576,211.73, 864,310.64 and 149,709.80

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Solution

The fourth proportional to 576,211.73, 864,310.64 and 149,709.80 is: 224,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,211.73 : 864,310.64 = 149,709.80 : x
  2. Step 2: Convert to fraction form
    576,211.73/864,310.64 = 149,709.80/x
  3. Step 3: Cross multiply
    576,211.73x = 864,310.64 × 149,709.80
  4. Step 4: Simplify right side
    576,211.73x = 129,395,774,464.50
  5. Step 5: Solve for x
    x = 129,395,774,464.50/576,211.73
  6. Step 6: Final answer
    x = 224,562.90

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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.