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Finding the Fourth Proportional to 178,912.55, 268,327.29 and 52,518.86

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Solution

The fourth proportional to 178,912.55, 268,327.29 and 52,518.86 is: 78,766.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,912.55 : 268,327.29 = 52,518.86 : x
  2. Step 2: Convert to fraction form
    178,912.55/268,327.29 = 52,518.86/x
  3. Step 3: Cross multiply
    178,912.55x = 268,327.29 × 52,518.86
  4. Step 4: Simplify right side
    178,912.55x = 14,092,242,036.05
  5. Step 5: Solve for x
    x = 14,092,242,036.05/178,912.55
  6. Step 6: Final answer
    x = 78,766.09

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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.