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Finding the Fourth Proportional to 176,302.27, 264,222.41 and 81,520.43

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Solution

The fourth proportional to 176,302.27, 264,222.41 and 81,520.43 is: 122,173.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,302.27 : 264,222.41 = 81,520.43 : x
  2. Step 2: Convert to fraction form
    176,302.27/264,222.41 = 81,520.43/x
  3. Step 3: Cross multiply
    176,302.27x = 264,222.41 × 81,520.43
  4. Step 4: Simplify right side
    176,302.27x = 21,539,522,750.12
  5. Step 5: Solve for x
    x = 21,539,522,750.12/176,302.27
  6. Step 6: Final answer
    x = 122,173.82

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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.