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Finding the Fourth Proportional to 214,670.29, 322,042.55 and 72,516.60

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Solution

The fourth proportional to 214,670.29, 322,042.55 and 72,516.60 is: 108,787.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,670.29 : 322,042.55 = 72,516.60 : x
  2. Step 2: Convert to fraction form
    214,670.29/322,042.55 = 72,516.60/x
  3. Step 3: Cross multiply
    214,670.29x = 322,042.55 × 72,516.60
  4. Step 4: Simplify right side
    214,670.29x = 23,353,431,626.41
  5. Step 5: Solve for x
    x = 23,353,431,626.41/214,670.29
  6. Step 6: Final answer
    x = 108,787.44

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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.