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Finding the Fourth Proportional to 508,310.61, 762,452.91 and 134,336.85

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Solution

The fourth proportional to 508,310.61, 762,452.91 and 134,336.85 is: 201,501.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,310.61 : 762,452.91 = 134,336.85 : x
  2. Step 2: Convert to fraction form
    508,310.61/762,452.91 = 134,336.85/x
  3. Step 3: Cross multiply
    508,310.61x = 762,452.91 × 134,336.85
  4. Step 4: Simplify right side
    508,310.61x = 102,425,522,202.73
  5. Step 5: Solve for x
    x = 102,425,522,202.73/508,310.61
  6. Step 6: Final answer
    x = 201,501.84

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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.