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Finding the Fourth Proportional to 133,686.43, 184,469.71 and 79,951.84

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Solution

The fourth proportional to 133,686.43, 184,469.71 and 79,951.84 is: 110,323.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,686.43 : 184,469.71 = 79,951.84 : x
  2. Step 2: Convert to fraction form
    133,686.43/184,469.71 = 79,951.84/x
  3. Step 3: Cross multiply
    133,686.43x = 184,469.71 × 79,951.84
  4. Step 4: Simplify right side
    133,686.43x = 14,748,692,738.77
  5. Step 5: Solve for x
    x = 14,748,692,738.77/133,686.43
  6. Step 6: Final answer
    x = 110,323.04

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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.