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Finding the Fourth Proportional to 133,698.76, 184,504.30 and 79,986.04

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Solution

The fourth proportional to 133,698.76, 184,504.30 and 79,986.04 is: 110,380.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,698.76 : 184,504.30 = 79,986.04 : x
  2. Step 2: Convert to fraction form
    133,698.76/184,504.30 = 79,986.04/x
  3. Step 3: Cross multiply
    133,698.76x = 184,504.30 × 79,986.04
  4. Step 4: Simplify right side
    133,698.76x = 14,757,768,319.97
  5. Step 5: Solve for x
    x = 14,757,768,319.97/133,698.76
  6. Step 6: Final answer
    x = 110,380.74

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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.