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Finding the Fourth Proportional to 214,912.85, 322,466.20 and 88,640.25

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Solution

The fourth proportional to 214,912.85, 322,466.20 and 88,640.25 is: 133,000.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,912.85 : 322,466.20 = 88,640.25 : x
  2. Step 2: Convert to fraction form
    214,912.85/322,466.20 = 88,640.25/x
  3. Step 3: Cross multiply
    214,912.85x = 322,466.20 × 88,640.25
  4. Step 4: Simplify right side
    214,912.85x = 28,583,484,434.59
  5. Step 5: Solve for x
    x = 28,583,484,434.59/214,912.85
  6. Step 6: Final answer
    x = 133,000.35

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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.