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Finding the Fourth Proportional to 162,912.32, 244,428.96 and 52,112.96

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Solution

The fourth proportional to 162,912.32, 244,428.96 and 52,112.96 is: 78,188.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,912.32 : 244,428.96 = 52,112.96 : x
  2. Step 2: Convert to fraction form
    162,912.32/244,428.96 = 52,112.96/x
  3. Step 3: Cross multiply
    162,912.32x = 244,428.96 × 52,112.96
  4. Step 4: Simplify right side
    162,912.32x = 12,737,916,615.32
  5. Step 5: Solve for x
    x = 12,737,916,615.32/162,912.32
  6. Step 6: Final answer
    x = 78,188.79

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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.