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Finding the Fourth Proportional to 133,343.96, 184,024.32 and 79,631.24

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Solution

The fourth proportional to 133,343.96, 184,024.32 and 79,631.24 is: 109,896.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,343.96 : 184,024.32 = 79,631.24 : x
  2. Step 2: Convert to fraction form
    133,343.96/184,024.32 = 79,631.24/x
  3. Step 3: Cross multiply
    133,343.96x = 184,024.32 × 79,631.24
  4. Step 4: Simplify right side
    133,343.96x = 14,654,084,791.76
  5. Step 5: Solve for x
    x = 14,654,084,791.76/133,343.96
  6. Step 6: Final answer
    x = 109,896.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.