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Finding the Fourth Proportional to 122,799.62, 184,091.70 and 101,912.96

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Solution

The fourth proportional to 122,799.62, 184,091.70 and 101,912.96 is: 152,780.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,799.62 : 184,091.70 = 101,912.96 : x
  2. Step 2: Convert to fraction form
    122,799.62/184,091.70 = 101,912.96/x
  3. Step 3: Cross multiply
    122,799.62x = 184,091.70 × 101,912.96
  4. Step 4: Simplify right side
    122,799.62x = 18,761,330,058.43
  5. Step 5: Solve for x
    x = 18,761,330,058.43/122,799.62
  6. Step 6: Final answer
    x = 152,780.03

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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.