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Finding the Fourth Proportional to 234,311.72, 351,394.86 and 84,532.50

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Solution

The fourth proportional to 234,311.72, 351,394.86 and 84,532.50 is: 126,772.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,311.72 : 351,394.86 = 84,532.50 : x
  2. Step 2: Convert to fraction form
    234,311.72/351,394.86 = 84,532.50/x
  3. Step 3: Cross multiply
    234,311.72x = 351,394.86 × 84,532.50
  4. Step 4: Simplify right side
    234,311.72x = 29,704,284,913.13
  5. Step 5: Solve for x
    x = 29,704,284,913.13/234,311.72
  6. Step 6: Final answer
    x = 126,772.51

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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.